A couple of times I've encountered a situation in which SQL Server yields the following condition: SQL Server Message 63: [Microsoft][SQL Server Native Client 10.0]Query timeout expired This happening with any action update-worthy under Dynamics SL 2011. I've checked out some tips, like KB2551478. I have no FRX installation. There are some custom triggers setup, but all of them have the "set no count" statement. We also scan for deadlocks, but none appears. What strikes me most is that this behavior stops after some 40-90 minutes. I'm still without a clue on what started or what stopped this. We've tried the following: Restarting the SQL service. Kill some idle SQL sessions. We run an Application Server that seems to leave lingering sessions. Enable/Disable selected triggers. We also check out our SQL server health. No indication of overload or system errors. After all this actions, most of them nonsense guesses, the behavior is still the same. Then after a while, the problem stops and back to normal again. Anyone has found some light on this?
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