We notice that we had a 'windows could not connect to the group policy client service' error on a batch of machines.
We already had the registry for AuthenticationCapabilities and CoInitializeSecurityParam set using GPO.
But somehow the value for AuthenticationCapabilities had changed from 0x00003020 (decimal 12320) to 0x00012320 (decimal 74528) and it caused the error.
Once this was corrected, everything worked fine (as we already knew - that's the reason we had pushed out the keys using the GPMC preference).
But what I want to know is, what does the key do and what values it can have? I guess its something to do with permissions on teh SVCHost starting up, but could not get much details from the internet on this.
Regards,
Ramu V Ramanan