How to fix New Key Failed to Generate Error and Attestation Failure in Modern Warfare 4

T1Covered by 1 source · first reported by Steam store news / itch.io at 23 Oct, 23:18 UTC

Call of Duty: Modern Warfare 4‘s modes, barring the Campaign requires you to connect to the servers, and to do so, you’ll need to prevent Attestation Failure. If you get this failure, you can’t participate in Multiplayer and DMZ. Having the New Key Failed to Generate error automatically means that…