I have moved database to new SQL server, "Server2", and we did SQL Aliases in all SharePoint servers, like this post
Using SQL Aliases with SharePoint
It happened almost 1 year ago. Now I am trying to run SharePoint Configuration Wizard giving below error. But application is working fine.
What could be the problem?
Update:
Log errors after ran wizard
SqlError: 'Cannot open database "SharePoint_Config" requested by the login. The login failed.' Source: '.Net SqlClient Data Provider' Number: 4060 State: 1 Class: 11 Procedure: '' LineNumber: 65536 Server: 'Server1' 07/22/2013 13:25:32.73 OWSTIMER.EXE (0x0724) 0x073C Windows SharePoint Services Database
880j High SqlError: 'Login failed for user 'Domain\sn_spappprod'.' Source: '.Net SqlClient Data Provider' Number: 18456 State: 1 Class: 14 Procedure: '' LineNumber: 65536 Server: 'Server1' 07/22/2013 13:25:32.73 OWSTIMER.EXE (0x0724) 0x073C Windows SharePoint Services Database
6y63 Critical SQL Database 'SharePoint_Config' on SQL Server instance 'Server1' not found. Additional error information from SQL Server is included below. Cannot open database "SharePoint_Config" requested by the login. The login failed. Login failed for user 'Domain\sn_spappprod'. 07/22/2013 13:25:32.73 OWSTIMER.EXE (0x0724) 0x073C Windows SharePoint Services Database
880k High at Microsoft.SharePoint.Utilities.SqlSession.ExecuteReader(SqlCommand command, CommandBehavior behavior) at
It suppose to connect alias databases.