How Do I Fix 401 Unauthorized Error? Today

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.

If the website recently changed its security settings or moved servers, your computer might be using outdated IP information. Open Command Prompt and type ipconfig /flushdns . 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

Your browser stores "cookies" to remember who you are. If these cookies are outdated or broken, the server will reject them. Go to your browser settings. Clear . Restart your browser and try again. 5. Flush Your DNS Open Command Prompt and type ipconfig /flushdns

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

Open Terminal and type sudo killall -HUP mDNSResponder . 6. If You Are the Website Owner