Are you seeing this on a or while working on coding/API development ?
If the website recently changed its security settings or moved servers, your computer might be using outdated IP information.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?
Open Terminal and type sudo killall -HUP mDNSResponder . 6. If You Are the Website Owner Are you seeing this on a or while
If you’re seeing this on your own site, the issue is likely in your configuration: How Do I Fix 401 Unauthorized Error?