![SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave](https://i0.wp.com/blog.sqlauthority.com/i/b/error40/e40_7.jpg?resize=350%2C200&ssl=1)
SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave
![SQL SERVER - LogonUserExEx Fails for User & GetToken - Logging on as the CNO Failed With Error 1326 - SQL Authority with Pinal Dave SQL SERVER - LogonUserExEx Fails for User & GetToken - Logging on as the CNO Failed With Error 1326 - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/e/clu-ag-err-01.jpg)
SQL SERVER - LogonUserExEx Fails for User & GetToken - Logging on as the CNO Failed With Error 1326 - SQL Authority with Pinal Dave
![An error occurred during the execution of xp_cmdshell. A call to 'LogonUserW' failed with error code: '1326'. – Technical Guided An error occurred during the execution of xp_cmdshell. A call to 'LogonUserW' failed with error code: '1326'. – Technical Guided](https://blog.svarinos.eu/wp-content/uploads/2020/10/sql-database-server-isolated-flat-web-mobile-icon-vector-28995487.jpg)
An error occurred during the execution of xp_cmdshell. A call to 'LogonUserW' failed with error code: '1326'. – Technical Guided
![SQL SERVER - LogonUserExEx Fails for User & GetToken - Logging on as the CNO Failed With Error 1326 - SQL Authority with Pinal Dave SQL SERVER - LogonUserExEx Fails for User & GetToken - Logging on as the CNO Failed With Error 1326 - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/wp-content/uploads/2020/03/GetToken.jpg)
SQL SERVER - LogonUserExEx Fails for User & GetToken - Logging on as the CNO Failed With Error 1326 - SQL Authority with Pinal Dave
![SQL SERVER – Cannot open backup device. Operating system error 1326 (Logon failure: unknown user name or bad password.) SQL SERVER – Cannot open backup device. Operating system error 1326 (Logon failure: unknown user name or bad password.)](https://blog.toadworld.com/hubfs/DefaultImages/SQLServerPlatform-1.png)
SQL SERVER – Cannot open backup device. Operating system error 1326 (Logon failure: unknown user name or bad password.)
![SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/firewall3.gif)
SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave
![SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave](https://i0.wp.com/blog.sqlauthority.com/wp-content/uploads/2016/05/alias-01.jpg?resize=350%2C200&ssl=1)
SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave
![SQL Server This account is currently locked, so the user 'sa' has failed. The system administrator cannot unlock the account. (Microsoft SQL Server, Error: 18486), login error 18456 - Programmer All SQL Server This account is currently locked, so the user 'sa' has failed. The system administrator cannot unlock the account. (Microsoft SQL Server, Error: 18486), login error 18456 - Programmer All](https://programmerall.com/images/947/31/3162aaa19291a411afd2abe62ddfb223.png)
SQL Server This account is currently locked, so the user 'sa' has failed. The system administrator cannot unlock the account. (Microsoft SQL Server, Error: 18486), login error 18456 - Programmer All
![SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/firewall2.gif)
SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave
![SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave SQL SERVER - Fix : Error : 1326 Cannot connect to Database Server Error: 40 - Could not open a connection to SQL Server - SQL Authority with Pinal Dave](https://blog.sqlauthority.com/i/b/firewall.gif)