Hi All,
I am using Win 2008 R2,SQL Server 2008R2
When i try to connect to SQL Server i am getting error 18456.
Previously i have installed Active Directory and immediatly i haved un installed it. After this i am not able log in Database Engine with Windows Aduthenticatino and sa accounts.
For both Windows Authenticatin and sa user i am getting same errors
Message From SSMS:
Cannot connect to SERVER.
Login failed for user 'SERVER\Administrator'. (.Net SqlClient Data Provider)
------------------------------
Server Name: WIN-HAJHN3NCQNP
Error Number: 18456
Severity: 14
State: 1
Line Number: 65536
Message From Event Viewer Applicatino Logs :
-->Login failed for user 'sa'. Reason: An error occurred while evaluating the password. [CLIENT: <local machine>]
-->Login failed for user 'SERVER\Administrator'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: <local machine>]
I have tried this
1. Opened SSMS with Run as Administrator.
2. Checked in regedit for login mode-it is '2'-Mixed mode\
I dont know why it is happening.
How can i log in to Sql Server ?
Please suggest me the ways to solve this issue.
Thanks & Regards
MD.Liakath ali