For some as yet explained reason, servers in my Citrix farm appear to lose DSN information connecting to the datastore. When this happens, I see the below error. * The Citrix Presentation Server failed to connect to the Data Store. ODBC error while connecting to the database: 28000 -> [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'dbuser'. *The database is not 28000, it is actually called Citrix. I found an instance online of another person experiencing the same issue, but no resolution. To resolve I need to run dsmaint config and point it back to the correct dsn and restart the IMA service. Any ideas ? Regards