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	:'''''Gray Monday''' and '''Clarion Note''' redirect here.''		:'''''Gray Monday''' and '''Clarion Note''' redirect here.''
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	==Overview==		==Overview==
−	Known alternately as '''Gray Monday''', the '''Blackout''' that happened on or around 7 August [[3132]] saw unknown perpetrators disable some 80 percent of the [[hyperpulse generator]] network in simultaneous attacks and acts of sabotage not only in the [[Inner Sphere]], but also in the [[Clan Occupation Zones]] and the [[periphery]],<ref>Loss of HPGs in the periphery confirmed by Line Developer Herbert A. Beas II in an official chat on 24 February 2013; see also [[Talk:Blackout|this article's Talk page]]</ref> effectively crashing the network and crippling interstellar communications. The [[Clans]] of the [[Inner Sphere]] were affected as well.<ref>''Era Report: 3145'', p. 12: "History and Review - The Fall of Darkness - What about the Clans?"</ref>	+	Known alternately as '''Gray Monday''', the '''Blackout''' of [[3132]] saw unknown perpetrators disable some 80 percent of the [[Hyperpulse Generator]] network in simultaneous attacks and acts of sabotage not only in the [[Inner Sphere]], but also in the [[Clan Occupation Zones]] and the [[periphery]],<ref>Loss of HPGs in the periphery confirmed by Line Developer Herbert A. Beas II in an official chat on 24 February 2013; see also [[Talk:Blackout|this article's Talk page]]</ref> effectively crashing the network and crippling interstellar communications. The [[Clans]] were affected as well.<ref>''Era Report: 3145'', p. 12, "History and Review - The Fall of Darkness - What about the Clans?"</ref>
−	As a result of the Blackout, interstellar communication by and large collapsed, and was reduced to relaying messages via [[JumpShip]] in "[[pony express]]"-style. By early [[3134]], [[Paladin of the Republic|Paladin]] [[Kelson Sorenson]] and a select group of [[Republic of the Sphere]] knights and diplomats had united a disparate collection of cargo lines, free traders and repurposed military vessels into a relay network dubbed "Solar Express".<ref name=EDDA5>''Era Report: Dark Age'', p. 5</ref>	+	As a result of the Blackout, interstellar communication by and large collapsed, and was reduced to relaying messages via [[JumpShip]] in "[[pony express]]"-style. By early [[3134]], [[Paladin (rank)|Paladin]] [[Kelson Sorenson]] and a select group of [[Republic of the Sphere]] knights and diplomats had united a disparate collection of cargo lines, free traders and repurposed military vessels into a relay network dubbed "Solar Express".<ref name=EDDA5>''Era Report: Dark Age'', p. 5</ref>
	The communications blackout had widespread and far reaching ramifications, plunging the Inner Sphere into chaos. Civil unrest grew when it became apparent that the Blackout would not be quick or easy to fix.		The communications blackout had widespread and far reaching ramifications, plunging the Inner Sphere into chaos. Civil unrest grew when it became apparent that the Blackout would not be quick or easy to fix.
−	"[[Black Box]]" faster-than-light communication was apparently not affected by whatever caused the Blackout, using a fundamentally different working principle.<ref>''Ghost War'', p. 141</ref> However, their continuous use caused a disruption in hyperspace frequency, and by 3143, Black Box messages became so garbled that they were rendered effectively useless, with predictions of at least a century before recovery.<ref>''Shrapnel #5'', p. 35: ''Black Boxes''</ref>	+	"[[Black Box]]" faster-than-light communication was apparently not affected by whatever caused the Blackout, using a fundamentally different working principle.{{cn}}
	==Two-pronged attack==		==Two-pronged attack==
	There were in fact two simultaneous attack vectors against the HPG grid which are lumped together in the public perception of the Blackout.		There were in fact two simultaneous attack vectors against the HPG grid which are lumped together in the public perception of the Blackout.
−	Overall, 77 percent of all HPGs in the Inner Sphere succumbed to HPG Core burnout (later revealed to be a result of the "Clarion Note" protocol, see below) or other technological glitches, and another 3 percent were sabotaged or attacked outright.<ref name=EDDA4/> The HPGs that were directly attacked on 7 August were those that were somehow immune to Clarion Note. Although sources on the Blackout tend to lump the force-of-arms and sabotage attacks in with the Clarion Note core burnout, it is worth noting that the direct attacks apparently sought to disable the HPGs without destroying them, in a fashion where repairs were possible, whereas Clarion Note utterly destroyed the affected HPGs.	+	Overall, 77 percent of all HPGs in the Inner Sphere succumbed to core burnout (later revealed to be a result of the "Clarion Note" protocol) or other technological glitches, and another 3 percent were sabotaged or attacked outright.<ref name=EDDA4/> The HPGs that were directly attacked on 7 August were those that were somehow immune to Clarion Note. Although sources on the Blackout tend to lump the force-of-arms and sabotage attacks in with the Clarion Note core burnout, it is worth noting that the direct attacks apparently sought to disable the HPGs without destroying them, in a fashion where repairs were possible, whereas Clarion Note utterly destroyed the affected HPGs.
	===Clarion Note===		===Clarion Note===
−	Most HPGs were actually taken down not by force of arms or on-site sabotage but in a more insidious way, by what appeared to be some sort of system-virus which caused the HPG core to overload and burn itself out with little collateral damage.<ref name=ER3145-12/>	+	Most HPGs were actually taken down not by force of arms or on-site sabotage but in a more insidious way, by what appeared to be some sort of system-virus which caused the HPG core to overload and burn itself out with little collateral damage.<ref name=ER3145-12/>
−	On Thursday, 4 August [[3132]], several class A HPG stations across the Inner Sphere began reporting strange and disruptive power spikes and signal modulations, though at the time these were regarded as isolated cases and it was expected that the problem would eventually correct itself. On Sunday, 7 August, affected HPGs began to fail one by one.<ref name=EDDA4>''Era Digest: Dark Age'', p. 4: "Gray Monday"</ref> Even brand-new replacement cores showed the same symptoms and burned out.<ref name=ER3145-12/> This proved impossible to fix, and [[Tucker Harwell]] eventually surmised that the cause must lie with the medium of hyperspace itself.	+	On Thursday, 4 August [[3132]], several class A HPG stations across the Inner Sphere began reporting strange and disruptive power spikes and signal modulations, though at the time these were regarded as isolated cases and it was expected that the problem would eventually correct itself. On Sunday, 7 August, affected HPGs began to fail one by one.<ref name=EDDA4>''Era Digest: Dark Age'', p. 4 "Gray Monday"</ref> Even brand-new replacement cores showed the same symptoms and burned out.<ref name=ER3145-12/> This proved impossible to fix, and [[Tucker Harwell]] eventually surmised that the cause must lie with the medium of hyperspace itself.
−	Harwell later discovered references to a "'''Clarion Note'''" emergency protocol, which describes the use of a [[Super-HPG]] to disrupt interstellar communication in an unspecified way. Clarion Note was known to–and possibly devised by–the [[Word of Blake]], who considered it a weapon of mass destruction and never actually used it.<ref name=ABoWc10>''A Bonfire of Worlds'', ch. 10</ref> Context implies that Clarion Note would have affected hyperspace in such a way as to burn out HPG cores.	+	Harwell later discovered references to a "'''Clarion Note'''" emergency protocol, which describes the use of a [[Super-HPG]] to disrupt interstellar communication in an unspecified way. Clarion Note was known to–and possibly devised by–the [[Word of Blake]], who considered it a weapon of mass destruction and never actually used it.<ref name=ABoWc10>''A Bonfire of Worlds'', Ch. 10</ref> Context implies that Clarion Note would have affected hyperspace in such a way as to burn out HPG cores.
	Evidence gathered by Harwell indicated that [[Devlin Stone]]'s Republic of the Sphere had acquired the technology, and that the protocol had been initiated.		Evidence gathered by Harwell indicated that [[Devlin Stone]]'s Republic of the Sphere had acquired the technology, and that the protocol had been initiated.
	===Direct attacks===		===Direct attacks===
−	Also on 7 August, the same day that HPGs began to burn out due to Clarion Note, most if not all [[ComStar]] alpha circuit HPGs<ref>In ''Ghost War'', ch. 14: [[Janella Lakewood]] mentions "Hitting all of the alpha circuit in one fell swoop" while an earlier report just said that "stations on the alpha circuit" were hit.</ref> and many on the beta circuit were attacked and disabled. Most of the beta circuit stations were taken down over the next two weeks.<ref name=GW14>''Ghost War'', ch. 14</ref> It is not entirely clear from the wording if these "attacks" refer to force of arms and sabotage only, or include the core burnouts that began to materialize on the same day, as only a small fraction (3 out of 80 percent) of all HPGs were attacked directly.	+	Also on 7 August, the same day that HPGs began to burn out due to Clarion Note, most if not all [[ComStar]] alpha circuit HPGs<ref>In ''Ghost War'', chapter 14, [[Janella Lakewood]] mentions "Hitting all of the alpha circuit in one fell swoop" while an earlier report just said that "stations on the alpha circuit" were hit.</ref> and many on the beta circuit were attacked and disabled. Most of the beta cicuit stations were taken down over the next two weeks.<ref name=GW14>''Ghost War'', chapter 14</ref> It is not entirely clear from the wording if these "attacks" refer to force of arms and sabotage only, or include the core burnouts that began to materialize on the same day, as only a small fraction (3 out of 80 percent) of all HPGs was attacked directly.
−	The attack patterns included unspecified stand-off weapons,<ref name=GW14/> missiles and other [[DropShip]] weapons,<ref name=GW14/> [[aerospace fighter]] strafing attacks,<ref name=GW14/> a zero-g assault team,<ref name=GW14/> a person in a guided VIP tour drawing a laser gun and destroying critical components before being shot by security,<ref name=GW14/><ref name=ER3145-12/> and one case of an undisclosed class A station being attacked by a squad of [[battle armor]] troopers using an entirely unknown battle armor design.<ref name=EDDA5/> The [[Vega]] HPG, which was one of the first ones to be turned off, was expected to be repaired soon when it was attacked by force of arms: an explosives-laden fighter slammed into the government complex, annihilating both the HPG complex and almost the entire planetary bureucreacy.<ref name=ACtA012>''A Call to Arms'', p. 143</ref><ref>''Dark Age Turning Points: Vega'', p. 4</ref>	+	The attack patterns included unspecified standoff weapons,<ref name=GW14/> missiles and other [[DropShip]] weapons,<ref name=GW14/> [[aerospace fighter]] strafing attacks,<ref name=GW14/> a zero-g assault team,<ref name=GW14/> a person in a guided VIP tour drawing a laser gun and destroying critical components before being shot by security,<ref name=GW14/><ref name=ER3145-12/> and one case of an undisclosed class A station being attacked by a squad of [[battlearmor]] troopers using an entirely unknown battlearmor design.<ref name=EDDA5/> The [[Vega]] HPG was one of the first to be attacked by force of arms.<ref name=ACtA012>''A Call to Arms'' p. 143</ref>
−	Some stations were warned and defended themselves against the attack, and some could effect crude repairs.<ref name=GW14/> Still, 80 percent of the HPG grid was effectively taken down.<ref name=GW14/> Computer viruses were used to disrupt communication between arrays and ground stations.<ref name=GW11>''Ghost War'', ch. 11</ref> A few HPG stations remained technically functional but were incapacitated by different, sometimes bizarre failures such as being able to transmit but unable to receive data packages ([[Ayacucho]] station) or looping all outgoing transmissions right back to themselves ([[Jacson]] station).<ref name=ER3145-12/>	+	Some stations were warned and defended themselves against the attack, and some could effect (crude) repairs.<ref name=GW14/> Still, 80 percent of the HPG grid was effectively taken down.<ref name=GW14/> Computer viruses were used to disrupt communication between arrays and ground stations.<ref name=GW11>''Ghost War'', chapter 11</ref> A few HPG stations remained technically functional but were incapacitated by different, sometimes bizarre failures such as being able to transmit but unable to receive data packages ([[Ayacucho]] station) or looping all outgoing transmissions right back to themselves ([[Jacson]] station).<ref name=ER3145-12/>
−	Over four dozen stations across the [[Inner Sphere]] fell victim to sabotage.<ref name=ER3145-12>''Era Report: 3145'', p. 12: "History and Review - The Fall of Darkness"</ref>	+	Over four dozen stations across the [[Inner Sphere]] fell victim to sabotage.<ref name=ER3145-12>''Era Report: 3145'', p. 12, "History and Review - The Fall of Darkness"</ref>
	Overall, the impression was that the attacks and acts of sabotage were surgical strikes that took out the HPGs without destroying them outright, and that the damage could be repaired; however, it vastly overtaxed Inner Sphere capacity for building replacement parts for devices that had been built to last centuries, especially with technology and industrial capacity having been [[lostech|degraded]] by the [[Succession Wars era]].<ref name=GW11/>		Overall, the impression was that the attacks and acts of sabotage were surgical strikes that took out the HPGs without destroying them outright, and that the damage could be repaired; however, it vastly overtaxed Inner Sphere capacity for building replacement parts for devices that had been built to last centuries, especially with technology and industrial capacity having been [[lostech|degraded]] by the [[Succession Wars era]].<ref name=GW11/>
−	It was specifically mentioned that 80 percent of the alpha circuit HPGs were damaged,<ref name=GW11/> with context suggesting that the "damage" referred to is more the repairable damage from direct attacks as opposed to total loss from HPG core burnout through Clarion Note.	+	It was specifically mentioned that 80 percent of the alpha circuit were damaged,<ref name=GW11/> with context suggesting that the "damage" referred to is more the repairable damage from direct attacks as opposed to total loss from HPG core burnout through Clarion Note.
	=="Gray Monday"==		=="Gray Monday"==
	Although the first signs of the Blackout appeared as early as 4 August, the direct attacks against HPG stations happened on 7 August, the same day the first HPGs experienced core burnouts. Thus, Sunday, 7 August 3132, is usually given as the date for the Blackout.		Although the first signs of the Blackout appeared as early as 4 August, the direct attacks against HPG stations happened on 7 August, the same day the first HPGs experienced core burnouts. Thus, Sunday, 7 August 3132, is usually given as the date for the Blackout.
−	It has been speculated<ref>By Line Developer Herbert A. Beas II; see also [[Talk:Blackout|this article's Talk page]]</ref> that the appellation "Gray Monday" for a date that is actually a Sunday comes from the fact that the full impact of the event was not felt until the following day (Monday, 8 August 3132).	+	It has been speculated<ref>By Line Developer Herbert A. Beas II; ; see also [[Talk:Blackout|this article's Talk page]]</ref> that the appellation "Gray Monday" for a date that is actually a Sunday comes from the fact that the full impact of the event was not felt until the following day (Monday, 8 August 3132).
	==Repairs==		==Repairs==
−	Despite the considerable differences between Clan and [[ComStar]] HPG protocols and years spent by ComStar's programmers trawling through centuries of kludged-together code updates and patches, nothing was found. Even newly manufactured cores showed the exact same symptoms before burning out. ComStar, whose primary reason for existence was the operation and maintenance of the HPG network, threw everything they had at the problem, but save for restoring the HPG on [[Wyatt]] in [[3135]], and [[Millungera]] in [[3137]] (temporarily in the latter case), nothing worked. Later findings by Harwell proved that his successes in reactivating HPGs could not be easily duplicated, as each station would need to find a unique frequency. This threatened ComStar with irrelevancy, bankruptcy and total collapse.<ref name=ER3145-12/><ref>''A Bonfire of Worlds'' ch. 10</ref>	+	Despite the considerable differences between Clan and [[ComStar]] HPG protocols and years spent by ComStar's programmers trawling through centuries of kludged-together code updates and patches nothing was found, and even newly manufactured cores showed the exact same symptoms before burning out themselves. ComStar, whose primary reason for existence was the operation and maintenance of the HPG network, threw everything at the problem, but save for restoring the HPG on [[Wyatt]] in [[3135]], and [[Millungera]] in [[3137]], temporary in the last case, nothing has worked, threatening the organization with irrelevancy, bankruptcy and total collapse.<ref name=ER3145-12/>
	Republic intelligence at one point stated that some HPG stations had effected "crude repairs" in the aftermath of the attacks,<ref name=GW14/> but from the context this apparently refers to secondary equipment that was damaged by sabotage or force of arms, and not to HPG cores.		Republic intelligence at one point stated that some HPG stations had effected "crude repairs" in the aftermath of the attacks,<ref name=GW14/> but from the context this apparently refers to secondary equipment that was damaged by sabotage or force of arms, and not to HPG cores.
−
−	==Extent==
−	The total extent of the Blackout is unknown, but it is evident that it affected all of the [[Inner Sphere]] and near periphery (with the periphery boundary largely defined by the extent of the HPG network). However, there are indications that Clarion Note did not reach into the Deep Periphery, as the [[Escorpión Imperio]] wasn't affected at all, so probably the [[Home Clans]] were spared from it.<ref>''Operational Turning Points: Hanseatic Crusade'', p. 10</ref>
−
−	==ilClan Era==
−	In mid-[[3152]] the Alyina HPG was apparently restored to active service, roughly twenty years after it went offline. Now tied into the [[Clan Sea Fox]] [[Chatterweb]], the Alyina station received a welcome message from [[Twycross]], indicating that the Sea Foxes had found a solution to ending the Blackout. This solution is unknown, but appears to be hardware-related.<ref>''Tamar Rising'', p. 75</ref>
−
−	The same year, after taking control of all active and inactive HPG across both the [[Free Worlds League]] and the [[Wolf Empire]], the Sea Foxes claimed they could restore all disabled HPGs, but besides Alyina's reactivation, there was no further proof that this was possible.<ref>''Redemption Rites'', p. 268</ref>
−
−	The Foxes claimed to have discovered a ''complex but viable'' means to repair HPGs and also of building brand-new fully functioning HPGs that would be impervious to what caused the Blackout. One of those was being built on [[Twycross]].<ref>''Empire Alone'', p. 70</ref>
−
−	By [[3250]], the Blackout appeared to have been resolved, though [[Loremaster of the Star League]] [[Stephan Roshak]] noted that the disruption caused by it lingered for years after "the Last Annihilation" and the ilClan's ascension.<ref>''Technical Readout: Dark Age'', p. 4</ref>
	==Perpetrators==		==Perpetrators==
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	Republic intelligence dubbed the unknown perpetrators of the Blackout the "lions", and those profiting from it "jackals", with the caveat that the former may well be hiding among the latter.<ref name=GW14/><ref name=EDDA5/>		Republic intelligence dubbed the unknown perpetrators of the Blackout the "lions", and those profiting from it "jackals", with the caveat that the former may well be hiding among the latter.<ref name=GW14/><ref name=EDDA5/>
−
−	In [[3151]], after Terra had been conquered by [[Clan Wolf]], Devlin Stone claimed on his deathbed that he had uncovered that the Blackout had been caused by [[Word of Blake]] deep-cover cell, who activated Stone's Clarion Note protocol to make the Inner Sphere tear itself apart; however, he did not offer any proof or evidence.<ref>''Hour of the Wolf'', p. 365</ref>
	==Surviving HPGs==		==Surviving HPGs==
−	Only a handful of HPG stations throughout the Inner Sphere survived. The HPGs' ability to send messages to places up to 50 (A class HPGs) or 30 (B class stations) light years away considerably boosted the strategic importance of the worlds with functional HPGs (a working HPG is required to send messages, but not to receive them as HPGs effectively "jump" radio waves which can be received with regular radio equipment). Known worlds with working HPGs after the Blackout include:	+	Only a handful of HPG stations throughout the Inner Sphere survived. The HPG's ability to send messages to places up to 50 (A class HPGs) or 30 (B class stations) light years away considerably boosted the strategic importance of the worlds with functional HPGs (a working HPG is required to send messages, but not to receive them as HPGs effectively "jump" radio waves which can be received with regular radio equipment). Known worlds with working HPGs after the Blackout include:
−	*[[Achernar]]<ref>''[[A Call to Arms]]''</ref><ref name=EDDA-4>''Era Digest: Dark Age'', p. 4: "Functional Republic HPGs as of 01 January 3135"</ref> (class unknown)	+	*[[Achernar]]<ref>''[[A Call to Arms]]''</ref> <ref name=EDDA-4>''Era Digest: Dark Age'', p. 4 "Functional Republic HPGs as of 01 January 3135"</ref> (class unknown)
	*[[Albalii]]<ref name=EDDA-4/> (class unknown)		*[[Albalii]]<ref name=EDDA-4/> (class unknown)
	*[[Algot]]<ref name=BTW>''[[By Temptations and by War]]''</ref><ref name=EDDA-4/> (class B)		*[[Algot]]<ref name=BTW>''[[By Temptations and by War]]''</ref><ref name=EDDA-4/> (class B)
−	*[[Ayacucho]] (class unknown) - send only; incapable of receiving "anything but the simplest carrier packet"<ref name=ER3145-12/> which is noteworthy insofar as HPGs send regular radio signals through hyperspace that require no special technology to receive	+	*[[Ayacucho]] (class unknown) - send only; incapable of receiving "anything but the simplest carrier packet"<ref name=ER3145-12/>
−	*[[Altdorf]] (class unknown)<ref>''Redemption Rift, Part 3'', p. 11</ref>	+	*[[Bondurant]]<ref name=FW>''[[Fire at Will]]''</ref><ref name=ABoWc10>''A Bonfire of Worlds'', Ch. 10</ref> (class unknown)
−	*[[Bondurant]]<ref name=FW>''[[Fire at Will]]''</ref><ref name=ABoWc10>''A Bonfire of Worlds'', ch. 10</ref> (class unknown)
	*[[Devil's Rock]]<ref name=EDDA-4/> (class unknown)		*[[Devil's Rock]]<ref name=EDDA-4/> (class unknown)
−	*[[Gacrux]]<ref name=LN>''[[Dark Age: LinkNet Articles (3136)]]'', p. 1</ref><ref name=EDDA-4/> (class unknown)	+	*[[Gacrux]]<ref name=LN>[[LinkNet]]</ref> <ref name=EDDA-4/> (class unknown)
−	*[[Genoa]]<ref name=BTW/><ref name=EDDA-4/> (class unknown)	+	*[[Genoa]]<ref name=BTW/> <ref name=EDDA-4/> (class unknown)
−	*[[Glenmora]] (class unknown)<ref>''Redemption Rift, Part 1'', p. 37</ref>	+	*[[Hsien]]<ref name=LN/> <ref name=EDDA-4/> (class B)
−	*[[Hsien]]<ref name=LN/><ref name=EDDA-4/> (class B)	+	*[[Imbros III]]<ref name=FoF>''[[Flight of the Falcon]]''</ref> (restored [[3133]]<ref name=EDDA-4/>) (class unknown)
−	*[[Imalda]]<ref>''Blood Will Tell'', Ch. 2</ref> (class unknown)	+	*[[Irian]]<ref name=LN/> <ref name=EDDA-4/> (class A)
−	*[[Irian]]<ref name=LN/><ref name=EDDA-4/> (class A)	+	*[[Jacson]] (class unknown) - technically functional but useless as hyperspace loop routes all messages right back to Jacson HPG<ref name=ER3145-12/>
−	*[[Jacson]] (class unknown) - technically functional but useless as hyperspace loop routes all messages right back to Jacson HPG<ref name=ER3145-12/>	+	*[[Kessel]]<ref name=LN/> <ref name=EDDA-4/> (class B)
−	*[[Kessel]]<ref name=LN/><ref name=EDDA-4/> (class B)	+	*[[Menkar]]<ref name=BTW/> <ref name=EDDA-4/> (class unknown)
−	*[[Menkar]]<ref name=BTW/><ref name=EDDA-4/> (class unknown)	+	*[[Millungera]]  (class unknown) - temporarily; HPG fix did not last<ref>''[[Fire at Will]]''; restarted by ComStar during timeframe of novel, but ''[[A Bonfire of Worlds]]'' mentions that it didn't last</ref>
−	*[[New Aragon]]<ref name=BTW/><ref name=EDDA-4/> (class A as of [[3067]], class B as of [[3130]])	+	*[[New Aragon]]<ref name=BTW/> <ref name=EDDA-4/> (class A as of [[3067]], class B as of [[3130]])
−	*[[Northwind]] <ref name=EDDA-4/> (class B)	+	*[[Northwind]]<ref name=LN/> <ref name=EDDA-4/> (class B)
−	*[[Palmyra]] (class unknown) - HPG core destroyed or irreparably damaged during the [[Battle of Palmyra]] in [[3144]]<ref name=ER3145-34>''Era Report: 3145'', p. 34</ref>	+	*[[Palmyra]] (class unknown) - HPG core destroyed or irreparably damaged during the [[Battle of Palmyra]] in [[3144]]<ref name=ER3145-34>''Era Report: 3145'', p. 34</ref>
−	*[[Remagen]] (class unknown)<ref>''Shrapnel #7'', pp. 22–23: ''Voices of the Sphere: Twenty Years of Messages in Bottles''</ref>	+	*[[Ronel]]<ref>''[[A Call to Arms]]'', ''[[Fortress Republic]]''</ref> <ref name=EDDA-4/> (class unknown)
−	*[[Ronel]]<ref>''[[A Call to Arms]]'', ''[[Fortress Republic]]''</ref><ref name=EDDA-4/> (class unknown)
−	*[[Rowe]] (class unknown)<ref>''Redemption Rift, Part 3'', p. 11</ref>
	*[[Shasta]]<ref name=FW/> (class unknown)		*[[Shasta]]<ref name=FW/> (class unknown)
−	*[[Terra]]<ref name=FoF/><ref name=EDDA-4/> (class A)	+	*[[Terra]]<ref name=FoF/> <ref name=EDDA-4/> (class A)
−	*[[Thorin]]<ref>''[[Target of Opportunity]]''</ref><ref name=EDDA-4/> (class A)	+	*[[Thorin]]<ref>''[[Target of Opportunity]]''</ref> <ref name=EDDA-4/> (class A)
−	*[[Towne]]<ref name=EDDA-4/> (class unknown)	+	*[[Towne]] <ref name=EDDA-4/> (class unknown)
	*[[Tsamma]] (class B) - unclear; ambiguously noted as an "AFFS hub"<ref name=ER3145-34/>		*[[Tsamma]] (class B) - unclear; ambiguously noted as an "AFFS hub"<ref name=ER3145-34/>
−	*[[Twycross]] (class unknown) active in 3152.<ref name=TRp75>''Tamar Rising'', p. 75</ref>
−
−	==Restored HPG==
−	See too [[Project Sunlight]].
−
−	After two decades of the Blackout, only some non-working HPGs were made operational again, most by ComStar. Those known include:
−	* [[Alyina]], restored to active service mid-3152 by [[Clan Sea Fox]].<ref name=TRp75 />
−	*[[Imbros III]]<ref name=FoF>''[[Flight of the Falcon]]''</ref> (restored [[3133]]<ref name=EDDA-4/>) (class unknown)
−	*[[Millungera]] (class unknown) - temporarily; HPG fix did not last<ref>''[[Fire at Will]]''; restarted by ComStar during timeframe of novel, but ''[[A Bonfire of Worlds]]'' mentions that it didn't last</ref>
	*[[Wyatt]]<ref>''[[A Bonfire of Worlds]]'' indicates it is still operating in 3143.</ref> (class unknown)		*[[Wyatt]]<ref>''[[A Bonfire of Worlds]]'' indicates it is still operating in 3143.</ref> (class unknown)
	==Notes==		==Notes==
−	*In the [[BattleCorps]] [[w:PDF|PDF]] edition of the novel ''[[A Bonfire of Worlds]]'', the date of Gray Monday is given as 1 August (instead of 7 August) which, being a Monday, may originally have been the correct date. However, according to the [[Line Developer]], the date is corrected to 7 August in a proof of the novel which is in line with virtually all other [[Dark Age era]] publications (save one novel by [[Blaine Pardoe]]).<ref name=CGL_LDresponse>[https://bg.battletech.com/forums/ask-the-lead-developers/correct-date-for-gray-monday-01-or-07-aug-3132/msg460843/#msg460843 Catalyst Game Labs: "Correct date for Gray Monday - 01 or 07 Aug 3132?"]</ref>	+	*In the [[BattleCorps]] [[w:PDF|PDF]] edition of the novel ''[[A Bonfire of Worlds]]'', the date of Gray Monday is given as 1 August (instead of 7 August) which, being a Monday, may originally have been the correct date. However, according to the [[Line Developer]], the date is corrected to 7 August in a proof of the novel which is in line with virtually all other [[Dark Age era]] publications (save one novel by [[Blaine Pardoe]]).
	==References==		==References==
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	==Bibliography==		==Bibliography==
−	{{div col|colwidth=25em}}
	* ''[[A Bonfire of Worlds]]'' (novel)		* ''[[A Bonfire of Worlds]]'' (novel)
−	* ''[[Dark Age: LinkNet Articles (3136)]]''
−	* ''[[Empire Alone]]''
	* ''[[Era Digest: Dark Age]]''		* ''[[Era Digest: Dark Age]]''
	* ''[[Era Report: 3145]]''		* ''[[Era Report: 3145]]''
	* ''[[Ghost War]]'' (novel)		* ''[[Ghost War]]'' (novel)
−	* ''[[Hour of the Wolf]]''
−	* ''[[Operational Turning Points: Hanseatic Crusade]]''
−	* ''[[Shrapnel #5]]''
−	* ''[[Shrapnel #7]]''
−	* ''[[Tamar Rising]]''
−	* ''[[Technical Readout: Dark Age]]''
	* ''[[Trial by Chaos]]'' (novel)		* ''[[Trial by Chaos]]'' (novel)
−	{{div col end}}	+	*[http://bg.battletech.com/forums/index.php/topic,20559.0.html Official Line Developer ruling on the correct date], including explanation on why a Sunday would be called "Gray Monday". (Also copied to [[Talk:Blackout|this article's Talk page]] for archiving and reference.)
		+
	[[Category:Science and Technology Events]]		[[Category:Science and Technology Events]]

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:'''''Gray Monday''' and '''Clarion Note''' redirect here.'' ==Overview== Known alternately as '''Gray Monday''', the '''Blackout''' of [[3132]] saw unknown perpetrators disable some 80 percent of the [[Hyperpulse Generator]] network in simultaneous attacks and acts of sabotage not only in the [[Inner Sphere]], but also in the [[Clan Occupation Zones]] and the [[periphery]],<ref>Loss of HPGs in the periphery confirmed by Line Developer Herbert A. Beas II in an official chat on 24 February 2013; see also [[Talk:Blackout|this article's Talk page]]</ref> effectively crashing the network and crippling interstellar communications. The [[Clans]] were affected as well.<ref>''Era Report: 3145'', p. 12, "History and Review - The Fall of Darkness - What about the Clans?"</ref> As a result of the Blackout, interstellar communication by and large collapsed, and was reduced to relaying messages via [[JumpShip]] in "[[pony express]]"-style. By early [[3134]], [[Paladin (rank)|Paladin]] [[Kelson Sorenson]] and a select group of [[Republic of the Sphere]] knights and diplomats had united a disparate collection of cargo lines, free traders and repurposed military vessels into a relay network dubbed "Solar Express".<ref name=EDDA5>''Era Report: Dark Age'', p. 5</ref> The communications blackout had widespread and far reaching ramifications, plunging the Inner Sphere into chaos. Civil unrest grew when it became apparent that the Blackout would not be quick or easy to fix. "[[Black Box]]" faster-than-light communication was apparently not affected by whatever caused the Blackout, using a fundamentally different working principle.{{cn}} ==Two-pronged attack== There were in fact two simultaneous attack vectors against the HPG grid which are lumped together in the public perception of the Blackout. Overall, 77 percent of all HPGs in the Inner Sphere succumbed to core burnout (later revealed to be a result of the "Clarion Note" protocol) or other technological glitches, and another 3 percent were sabotaged or attacked outright.<ref name=EDDA4/> The HPGs that were directly attacked on 7 August were those that were somehow immune to Clarion Note. Although sources on the Blackout tend to lump the force-of-arms and sabotage attacks in with the Clarion Note core burnout, it is worth noting that the direct attacks apparently sought to disable the HPGs without destroying them, in a fashion where repairs were possible, whereas Clarion Note utterly destroyed the affected HPGs. ===Clarion Note=== Most HPGs were actually taken down not by force of arms or on-site sabotage but in a more insidious way, by what appeared to be some sort of system-virus which caused the HPG core to overload and burn itself out with little collateral damage.<ref name=ER3145-12/> On Thursday, 4 August [[3132]], several class A HPG stations across the Inner Sphere began reporting strange and disruptive power spikes and signal modulations, though at the time these were regarded as isolated cases and it was expected that the problem would eventually correct itself. On Sunday, 7 August, affected HPGs began to fail one by one.<ref name=EDDA4>''Era Digest: Dark Age'', p. 4 "Gray Monday"</ref> Even brand-new replacement cores showed the same symptoms and burned out.<ref name=ER3145-12/> This proved impossible to fix, and [[Tucker Harwell]] eventually surmised that the cause must lie with the medium of hyperspace itself. Harwell later discovered references to a "'''Clarion Note'''" emergency protocol, which describes the use of a [[Super-HPG]] to disrupt interstellar communication in an unspecified way. Clarion Note was known to–and possibly devised by–the [[Word of Blake]], who considered it a weapon of mass destruction and never actually used it.<ref name=ABoWc10>''A Bonfire of Worlds'', Ch. 10</ref> Context implies that Clarion Note would have affected hyperspace in such a way as to burn out HPG cores. Evidence gathered by Harwell indicated that [[Devlin Stone]]'s Republic of the Sphere had acquired the technology, and that the protocol had been initiated. ===Direct attacks=== Also on 7 August, the same day that HPGs began to burn out due to Clarion Note, most if not all [[ComStar]] alpha circuit HPGs<ref>In ''Ghost War'', chapter 14, [[Janella Lakewood]] mentions "Hitting all of the alpha circuit in one fell swoop" while an earlier report just said that "stations on the alpha circuit" were hit.</ref> and many on the beta circuit were attacked and disabled. Most of the beta cicuit stations were taken down over the next two weeks.<ref name=GW14>''Ghost War'', chapter 14</ref> It is not entirely clear from the wording if these "attacks" refer to force of arms and sabotage only, or include the core burnouts that began to materialize on the same day, as only a small fraction (3 out of 80 percent) of all HPGs was attacked directly. The attack patterns included unspecified standoff weapons,<ref name=GW14/> missiles and other [[DropShip]] weapons,<ref name=GW14/> [[aerospace fighter]] strafing attacks,<ref name=GW14/> a zero-g assault team,<ref name=GW14/> a person in a guided VIP tour drawing a laser gun and destroying critical components before being shot by security,<ref name=GW14/><ref name=ER3145-12/> and one case of an undisclosed class A station being attacked by a squad of [[battlearmor]] troopers using an entirely unknown battlearmor design.<ref name=EDDA5/> The [[Vega]] HPG was one of the first to be attacked by force of arms.<ref name=ACtA012>''A Call to Arms'' p. 143</ref> Some stations were warned and defended themselves against the attack, and some could effect (crude) repairs.<ref name=GW14/> Still, 80 percent of the HPG grid was effectively taken down.<ref name=GW14/> Computer viruses were used to disrupt communication between arrays and ground stations.<ref name=GW11>''Ghost War'', chapter 11</ref> A few HPG stations remained technically functional but were incapacitated by different, sometimes bizarre failures such as being able to transmit but unable to receive data packages ([[Ayacucho]] station) or looping all outgoing transmissions right back to themselves ([[Jacson]] station).<ref name=ER3145-12/> Over four dozen stations across the [[Inner Sphere]] fell victim to sabotage.<ref name=ER3145-12>''Era Report: 3145'', p. 12, "History and Review - The Fall of Darkness"</ref> Overall, the impression was that the attacks and acts of sabotage were surgical strikes that took out the HPGs without destroying them outright, and that the damage could be repaired; however, it vastly overtaxed Inner Sphere capacity for building replacement parts for devices that had been built to last centuries, especially with technology and industrial capacity having been [[lostech|degraded]] by the [[Succession Wars era]].<ref name=GW11/> It was specifically mentioned that 80 percent of the alpha circuit were damaged,<ref name=GW11/> with context suggesting that the "damage" referred to is more the repairable damage from direct attacks as opposed to total loss from HPG core burnout through Clarion Note. =="Gray Monday"== Although the first signs of the Blackout appeared as early as 4 August, the direct attacks against HPG stations happened on 7 August, the same day the first HPGs experienced core burnouts. Thus, Sunday, 7 August 3132, is usually given as the date for the Blackout. It has been speculated<ref>By Line Developer Herbert A. Beas II; ; see also [[Talk:Blackout|this article's Talk page]]</ref> that the appellation "Gray Monday" for a date that is actually a Sunday comes from the fact that the full impact of the event was not felt until the following day (Monday, 8 August 3132). ==Repairs== Despite the considerable differences between Clan and [[ComStar]] HPG protocols and years spent by ComStar's programmers trawling through centuries of kludged-together code updates and patches nothing was found, and even newly manufactured cores showed the exact same symptoms before burning out themselves. ComStar, whose primary reason for existence was the operation and maintenance of the HPG network, threw everything at the problem, but save for restoring the HPG on [[Wyatt]] in [[3135]], and [[Millungera]] in [[3137]], temporary in the last case, nothing has worked, threatening the organization with irrelevancy, bankruptcy and total collapse.<ref name=ER3145-12/> Republic intelligence at one point stated that some HPG stations had effected "crude repairs" in the aftermath of the attacks,<ref name=GW14/> but from the context this apparently refers to secondary equipment that was damaged by sabotage or force of arms, and not to HPG cores. ==Perpetrators== With the saboteurs either escaping or dying before interrogation, and no known casualties among the attacking military forces, their identity remains a mystery. The sole piece of identifying information was a strange insignia worn by some of the attackers: a snake coiled around a sword and set against a blood-red disk.<ref name=ER3145-12/> Republic intelligence dubbed the unknown perpetrators of the Blackout the "lions", and those profiting from it "jackals", with the caveat that the former may well be hiding among the latter.<ref name=GW14/><ref name=EDDA5/> ==Surviving HPGs== Only a handful of HPG stations throughout the Inner Sphere survived. The HPG's ability to send messages to places up to 50 (A class HPGs) or 30 (B class stations) light years away considerably boosted the strategic importance of the worlds with functional HPGs (a working HPG is required to send messages, but not to receive them as HPGs effectively "jump" radio waves which can be received with regular radio equipment). Known worlds with working HPGs after the Blackout include: *[[Achernar]]<ref>''[[A Call to Arms]]''</ref> <ref name=EDDA-4>''Era Digest: Dark Age'', p. 4 "Functional Republic HPGs as of 01 January 3135"</ref> (class unknown) *[[Albalii]]<ref name=EDDA-4/> (class unknown) *[[Algot]]<ref name=BTW>''[[By Temptations and by War]]''</ref><ref name=EDDA-4/> (class B) *[[Ayacucho]] (class unknown) - send only; incapable of receiving "anything but the simplest carrier packet"<ref name=ER3145-12/> *[[Bondurant]]<ref name=FW>''[[Fire at Will]]''</ref><ref name=ABoWc10>''A Bonfire of Worlds'', Ch. 10</ref> (class unknown) *[[Devil's Rock]]<ref name=EDDA-4/> (class unknown) *[[Gacrux]]<ref name=LN>[[LinkNet]]</ref> <ref name=EDDA-4/> (class unknown) *[[Genoa]]<ref name=BTW/> <ref name=EDDA-4/> (class unknown) *[[Hsien]]<ref name=LN/> <ref name=EDDA-4/> (class B) *[[Imbros III]]<ref name=FoF>''[[Flight of the Falcon]]''</ref> (restored [[3133]]<ref name=EDDA-4/>) (class unknown) *[[Irian]]<ref name=LN/> <ref name=EDDA-4/> (class A) *[[Jacson]] (class unknown) - technically functional but useless as hyperspace loop routes all messages right back to Jacson HPG<ref name=ER3145-12/> *[[Kessel]]<ref name=LN/> <ref name=EDDA-4/> (class B) *[[Menkar]]<ref name=BTW/> <ref name=EDDA-4/> (class unknown) *[[Millungera]] (class unknown) - temporarily; HPG fix did not last<ref>''[[Fire at Will]]''; restarted by ComStar during timeframe of novel, but ''[[A Bonfire of Worlds]]'' mentions that it didn't last</ref> *[[New Aragon]]<ref name=BTW/> <ref name=EDDA-4/> (class A as of [[3067]], class B as of [[3130]]) *[[Northwind]]<ref name=LN/> <ref name=EDDA-4/> (class B) *[[Palmyra]] (class unknown) - HPG core destroyed or irreparably damaged during the [[Battle of Palmyra]] in [[3144]]<ref name=ER3145-34>''Era Report: 3145'', p. 34</ref> *[[Ronel]]<ref>''[[A Call to Arms]]'', ''[[Fortress Republic]]''</ref> <ref name=EDDA-4/> (class unknown) *[[Shasta]]<ref name=FW/> (class unknown) *[[Terra]]<ref name=FoF/> <ref name=EDDA-4/> (class A) *[[Thorin]]<ref>''[[Target of Opportunity]]''</ref> <ref name=EDDA-4/> (class A) *[[Towne]] <ref name=EDDA-4/> (class unknown) *[[Tsamma]] (class B) - unclear; ambiguously noted as an "AFFS hub"<ref name=ER3145-34/> *[[Wyatt]]<ref>''[[A Bonfire of Worlds]]'' indicates it is still operating in 3143.</ref> (class unknown) ==Notes== *In the [[BattleCorps]] [[w:PDF|PDF]] edition of the novel ''[[A Bonfire of Worlds]]'', the date of Gray Monday is given as 1 August (instead of 7 August) which, being a Monday, may originally have been the correct date. However, according to the [[Line Developer]], the date is corrected to 7 August in a proof of the novel which is in line with virtually all other [[Dark Age era]] publications (save one novel by [[Blaine Pardoe]]). ==References== <references/> ==Bibliography== * ''[[A Bonfire of Worlds]]'' (novel) * ''[[Era Digest: Dark Age]]'' * ''[[Era Report: 3145]]'' * ''[[Ghost War]]'' (novel) * ''[[Trial by Chaos]]'' (novel) *[http://bg.battletech.com/forums/index.php/topic,20559.0.html Official Line Developer ruling on the correct date], including explanation on why a Sunday would be called "Gray Monday". (Also copied to [[Talk:Blackout|this article's Talk page]] for archiving and reference.) [[Category:Science and Technology Events]]

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