This is a really odd problem because it happens to only some of the Windows 7 machines on my Domain.
I have two 2008 R2 DNS servers on the network, and all the client machines are Windows 7.
The error from GPRESULT is as follows:
Group Policy Infrastructure failed due to the error listed below.
Logon failure: unknown user name or bad password.
Note: Due to the GP Core failure, none of the other Group Policy components processed their policy. Consequently, status information for the other components
is not available.
The Event ID associated with this is 1055 Error 5 (Access is denied). I'm not sure why the hardware is being denied access to the GP. But earlier today I wasn't even able to ping the PC via the network, even removing it from the domain and re adding it didn't help. I then proceeded to flush the DNS on the NIC and re register it, that's when the functionality of being able to ping the computer via name returned.
This only happens on the machine policy, not the user policy.
Normally I would not care, however I'm trying to move toward pushing all our software via GPO so that I can remove everyones Administrative privileges and stop people from installing bad software.
Thanks