How do I fix the Authentication error?
36104
"Software can't be installed or removed because the authentication service is not available. "
5193
What causes the 'Connection Refused' message?
50005
Unable to log in to my system
117605
Windows Logs Application is full of "Login failed for user 'sa'. Reason: Password did not match that for the login provided. [CLIENT: ****]"
35931
Apt update error - "An error occurred during the signature verification" (Chrome)
131345
The SMTP server requires a secure connection or the client was not authenticated
95823
12.10 error after login -Evolution calendar
29877
How to fix "Could not open a connection to your authentication agent." error when trying to add ssh-key?
5565
How to fix Permission Denied (Public key) error?
147242
Authentication required before suspend
24377
Authentication with old password no longer supported, use 4.1 style passwords
104186
SQL Server Windows Authentication fails after tonight's security updates: The login is from an untrusted domain
93571
The following signatures were invalid: EXPKEYSIG 1397BC53640DB551
96692
"Unable to obtain authorization for this operation" when trying to reset my default keychain
4949
Admin login returns 'Sorry, unrecognized username or password.'
7671
I get an error with the archipack
117719
Problem with certificates