This state usually means you do not have permission to receive the error details. ReasonsĮrror information is not available. I have copied and pasted the same from the link. That information is somewhat buried in this section of the message:īased on the documentation for this error, the severity and state actually mean something. The only useful message seems to be “Login failed for user ‘ myuser‘.” but what we really need to know is “why?”. (.Net SqlClient Data Provider)įor help, click: EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476Īt .OnError(SqlException exception, Boolean breakConnection)Īt .ThrowExceptionAndWarning(TdsParserStateObject stateObj)Īt .Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)Īt .CompleteLogin(Boolean enlistOK)Īt .AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)Īt .LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)Īt .OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)Īt .ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)Īt .CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)Īt .CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)Īt .GetConnection(DbConnection owningConnection)Īt .OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)Īt .Open()Īt .(UIConnectionInfo ci, IServerType server)Īt .()Īt first glance, it appears to be utterly useless. You try to login to SQL Server and you get a really nasty message:
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