KB10518: “Login failed for user 'X'. Reason: not associated with a trusted SQL Server connection” error message appears when logging into a project source in MicroStrategy against Microsoft SQL Server.
Cannot connect to the SQL database after rebuilding the Symantec Endpoint Protection Manager. SQLState: '01000' and '08001' are returned.
![connection - Microsoft SQL Server, Error: 18456 by login with "sa" through SQL Server Authentication - Stack Overflow connection - Microsoft SQL Server, Error: 18456 by login with "sa" through SQL Server Authentication - Stack Overflow](https://i.stack.imgur.com/SWEcq.png)
connection - Microsoft SQL Server, Error: 18456 by login with "sa" through SQL Server Authentication - Stack Overflow
![Connection failed ... SQL Server Error: 772 ... SQL Server Error: 18 ... SSL Security error" when trying to create ODBC connection (for FAP) Connection failed ... SQL Server Error: 772 ... SQL Server Error: 18 ... SSL Security error" when trying to create ODBC connection (for FAP)](https://www.ibm.com/support/pages/system/files/inline-images/image-20191218093811-2.png)
Connection failed ... SQL Server Error: 772 ... SQL Server Error: 18 ... SSL Security error" when trying to create ODBC connection (for FAP)
![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_1.jpg)
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 - Cannot connect to . Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. (Microsoft SQL Server, Error: 18452) - SQL SERVER - FIX ERROR - Cannot connect to . Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. (Microsoft SQL Server, Error: 18452) -](https://blog.sqlauthority.com/i/b/127error.jpg)
SQL SERVER - FIX ERROR - Cannot connect to . Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. (Microsoft SQL Server, Error: 18452) -
![SQL SERVER - FIX Error 18456, Severity: 14, State: 6. Login failed for user - SQL Authority with Pinal Dave SQL SERVER - FIX Error 18456, Severity: 14, State: 6. Login failed for user - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/a/state06-01.jpg)
SQL SERVER - FIX Error 18456, Severity: 14, State: 6. 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/image14.png)