How to Fix: Error Putty X11 proxy: Authorisation not recognised

Error Putty X11 proxy: Authorisation not recognised occurs when using PuTTY with Xming to forward X11 connections. This issue affects developers who are trying to run graphical applications on their Raspberry Pi from a Windows machine.

This error can be frustrating as it prevents the user from running graphical applications, which is often necessary for robot development. However, by following the steps outlined in this guide, you should be able to resolve the issue and get your X11 forwarding working.

💡 Why You Are Getting This Error

• The primary reason for this error is that PuTTY requires authentication before establishing an X11 connection. When Xming is enabled for X11 forwarding, it creates a socket that needs to be authorized by the user running the application.
• Another possible cause could be incorrect settings in PuTTY or Xming, such as incorrect display numbers or incorrect proxy settings.

✅ Best Solutions to Fix It

✨ Wrapping Up

To resolve the Error Putty X11 proxy: Authorisation not recognised, try enabling authentication in PuTTY or configuring Xming settings. If you are still having issues, check your PuTTY and Xming configurations for any incorrect settings.