Ensure your server folders aren't set to permissions that block public access (standard is usually 755 for folders and 644 for files).
If you use WordPress, a security plugin (like Wordfence) might be misidentifying you as a threat. How Do I Fix 401 Unauthorized Error?
A means the server received your request, but it won’t let you in because you lack valid authentication. Essentially, the website doesn't know who you are or your login credentials aren't checking out. Ensure your server folders aren't set to permissions
It sounds basic, but if your session timed out or a temporary glitch occurred during loading, a quick refresh (F5 or Cmd+R) can prompt the login box to reappear or fix a handshake error. 3. Log Out and Log Back In Essentially, the website doesn't know who you are
Open Terminal and type sudo killall -HUP mDNSResponder . 6. If You Are the Website Owner