If Outlook is unable to connect to the proxy server autodiscover on your Windows 11/10 system, you can try the suggested fixes in this post.

Quick tip: If you want to block users from changing a custom configuration, then first configure proxy, and then disable the settings with the steps below. Disable settings with Group Policy If ...

Web Proxy Auto-Discovery protocol is not safe anymore and can easily be hijacked. Learn how to disable WPAD in Windows 11/10 safely.