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.

If you’re seeing this on your own site, the issue is likely in your configuration: How Do I Fix 401 Unauthorized Error?

Open Terminal and type sudo killall -HUP mDNSResponder . 6. If You Are the Website Owner A means the server received your request, but