Error: 18456, Severity: 14, State: 5.Login failed for user 'domain\user'. Reason: Could not find a login matching the name provided. - Support and Troubleshooting - Now Support Portal
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SQL SERVER - FIX : ERROR : Cannot open database requested by the login. The login failed. Login failed
![SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/error4064_2.jpg)
SQL SERVER - Fix : Error: 4064 - Cannot open user default database. Login failed. Login failed for user - SQL Authority with Pinal Dave
![How to Fix Login Failed for User (Microsoft SQL Server, Error: 18456) Step-By-Step – Add SQL Administrator to SQL Management Studio – ITProGuru Blog How to Fix Login Failed for User (Microsoft SQL Server, Error: 18456) Step-By-Step – Add SQL Administrator to SQL Management Studio – ITProGuru Blog](https://itproguru.com/wp-content/uploads/2014/09/SNAGHTML1d3c8af8.png)
How to Fix Login Failed for User (Microsoft SQL Server, Error: 18456) Step-By-Step – Add SQL Administrator to SQL Management Studio – ITProGuru Blog
Cannot connect to SQL Server SQL State 28000 , 18456 error using Microsoft ODBC Driver 11 for SQL, but not with Native Client 10.0
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SQL SERVER - FIX Error 18456, Severity: 14, State: 6. Login failed for user - SQL Authority with Pinal Dave
![SQL SERVER - Error: 18456, State 149 - Login-based Server Access Validation Failed With an Infrastructure Error. Login Lacks Connect Endpoint Permission - SQL Authority with Pinal Dave SQL SERVER - Error: 18456, State 149 - Login-based Server Access Validation Failed With an Infrastructure Error. Login Lacks Connect Endpoint Permission - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/wp-content/uploads/2019/02/dac-err-01.jpg)