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2008 R2 active directory - wrong user name  or password on some users

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Last Modified: 2012-03-29
Hi,
I have 2008 R2 active directory environment with one physical DC and VMware virtual backup domain.

I got wrong user name  or password on some users including the administrator  when trying to log on to the DC\servers\workstation.

After reinstall the 2 DC's the system worked for a few days and I got the same problem: users got wrong username and password while trying to log on.
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Commented:
have you checked for virus's
CERTIFIED EXPERT

Commented:
Check workstations and DC´s time. Differences more than 10 minutes would make users can´t logon.

Author

Commented:
Thx, Yes.

Any other ideas?

Commented:
If multilanguage environment, keyboard layout could confuse password entries.

Does this problem persists when you reset the password to some simple one like: passworD1234
?

Author

Commented:
Guys come on.
Don't think so simple. we're not kids here :)

Please let's try to get to the bottom of it.

Thank you

Commented:
I reitterate have you checked for any virus activety it sounds wierd enough so it potentiallyt could be

Author

Commented:
Yes, we have
lucifer82Client Technology Manager
CERTIFIED EXPERT

Commented:
Have you checked if there is any suspecious authentication events logged in the event log?

Author

Commented:
Will do, thanks.
Any other ideas?
Commented:
I do virus checking by a linux boot cd i have seen a few virus's that cannot be removed by a windows av program

Commented:
If problem occurs and you reset the password to some simple one like: passworD1234 - will the problem still persist?

Do you have a multilingual environment?

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