Recently we upgraded our domain controllers to 2008 R2. And we have some problems with one application afterwards...
We have application server which uses fat client and separate (ms) sql database. If I start connection to application from my fat client on Windows XP SP3 workstation I get error something like "cannot connect to server, error with security package...".
At the same time error 4769 (0x1b) is logged to domain controller security log, username is service account. And at the same time also event 4625 is logged into application server security log - user account failed to log on.
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