How Do I Fix 401 Unauthorized Error? Apr 2026

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.

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 How Do I Fix 401 Unauthorized Error?

Look for "AuthUserFile" or "Require" rules that might be password-protecting directories. A means the server received your request, but

Open Terminal and type sudo killall -HUP mDNSResponder . 6. If You Are the Website Owner How Do I Fix 401 Unauthorized Error?