Sharepoint & SQL Server error 18456
SQL Server Log Entry:
Login failed for user 'NT-AUTHORTIY\SYSTEM'. [CLIENT: ]
Error: 18456, Severity: 14, State: 16.
Event Log Entry:
Event ID: 18456
Login failed for user 'NT-AUTHORTIY\SYSTEM'. [CLIENT: ]
Fix:
Open SQL Management Studio, locate the SQL Agent Jobs & deactivate/delete the corresponding “Shared_ServicesXXX_DB_Job_DeleteExpiredSessions“.