I am having problems with laptops losing machine authentication. I can see them in ACS 4.1 failed attempts with the reason "External DB user invalid or bad password". The only way I have figured out how to fix it is to rejoin them to the domain. Then the problem is fixed for a while.
Info: The computer account already exists on the domain
The machine has successfully logged into the domain previously
I am thinking it is an AD issue with machine passwords, but I cannot pinpoint the problem.
Any help would be appreciated.