Looking for logging into the Error Failed site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Error Failed site. After that you can login as usual with your login credentials.
https://support.microsoft.com/en-us/help/555332/login-failed-for-user-error-message-when-you-log-on-to-sql-server
http://www.google.com.ar/url?url=http://www.forosdelweb.com/f29/como-resuelvo-este-error-login-failed-user-gracias-por-todo-225919/
https://www.youtube.com/watch%3Fv%3DFHeDop4UfxU
https://www.linguee.es/ingles-espanol/traduccion/login%2Bfailed.html
https://stackoverflow.com/questions/40935824/fb-sdk-error-login-failed-react-native
https://www.cisco.com/c/en/us/support/docs/security/security-manager-43/116183-problem-CSM-00.html
http://www.google.com.ar/url?url=http://itproguru.com/expert/2014/09/how-to-fix-login-failed-for-user-microsoft-sql-server-error-18456-step-by-step-add-sql-administrator-to-sql-management-studio/
https://help.logmein.com/articles/en_US/FAQ/Login-Failed-on-LogMeIn-Client
https://kb.blackbaud.com/articles/Article/48089
https://help.mojang.com/customer/en/portal/articles/781529-login-failed
https://support.eset.com/kb5852/
https://support.plesk.com/hc/en-us/articles/360004061693-MSSQL-sa-user-keeps-getting-locked-Login-failed-for-user-sa-
https://github.com/schlatterbeck/snxvpn/issues/10