Numerous Event 681 errors

[Davetoo]

My E2K SP3 has been throwing out dozens of 681 events for a while now. The error is:

The logon to account: accountname
by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
form workstation: Exchangeservername
failed. The error code was: 3221225572

I know the error code is indicating a misspelled or bad user account. These errors are not occuring when users are actually trying to logon, as they go on all through the night and day, and the user accounts are not getting locked out.

It doesn't seem to be affecting the system, but I'd like to track down the source and correct the problem.

TIA

I'm Certifiable, not certified.
It just means my answers are from experience, not a book.

 

[Davetoo]

This is still going on. Has anyone seen this or have an idea of where to look for the problem?

I'm Certifiable, not certified.
It just means my answers are from experience, not a book.

 

[compgirlfhredi]

http://www.eventid.net/display.asp?eventid=681&source

 

[Davetoo]

Thanks for that, but eventid.net is one of the first places I go. Already been through all those suggestions and come up empty.

I'm Certifiable, not certified.
It just means my answers are from experience, not a book.