Fix for SQL 2008 Exception - An exception occurred while enqueueing a message in the target queue. Error: 15404, State: 19. Could not obtain information about Windows NT group/user 'DOMAIN\username', error code 0x5

After installing a recent series of Windows update, I began to get hundreds of SQL 2008 errors in the Windows Event log (20 or so per second) on one of our demonstration servers. These were as follows:

An exception occurred while enqueueing a message in the target queue. Error: 15404, State: 19. Could not obtain information about Windows NT group/user 'DOMAIN\username', error code 0x5.

or

An exception occurred while enqueueing a message in the target queue. Error: 15404, State: 19. Could not obtain information about Windows NT group/user 'DOMAIN\username', error code 0x2.

If you do have these exceptions, then you most likely have connectivity issues to your Active Directory server - and the identity of the owner of your databases  (dbo) is on that Active directory server. The SQL Service Broker is causing this exception. If this is not a resolvable issue condition, then you can change the owner to a SQL login (e.g. sa) and this will resolve the exception.

You can do this with the following command on each database that has the wrong owner:

sp_changedbowner 'sa'

DDK