Failed to load URL https://fab.com/plugins/ue5 with error ERR_NETWORK_ACCESS_DENIED (−138).

Summary

When starting the Fab in Unreal Engine 5.8 it only opens this error:

Failed to load URL Fab Plugin with error ERR_NETWORK_ACCESS_DENIED (−138).

When I try to access Fab Plugin through any networks or machine (yes/no firewall) the page gives this error:

Error
An error occurred during client initialization

I have installed Epic Launcher and Unreal Engine 5.8 from scratch and adjusted firewall settings. I have also un/installed fab plugin many times. Fab has worked very well in previous UE-version.

What type of bug are you experiencing?

Plugins

URL where the bug was encountered

Steps to Reproduce

Try to start Fab in Unreal Engine 5.8 and you might get this.

Expected Result

Fab to work inside UE 5.8

Observed Result

It would be nice to get the Fab working

Platform

PC / Windows 11

Operating System

Windows 11

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That’s very unfortunate. Have you tried removing it and re-adding it? You issue doesn’t seem to be connected to this: https://youtu.be/ZmotIC-Vlq8. But I’m leaving it here just in case.