Hello,
I am managing a mixed environment of Windows 10 and Windows 11 machines using version 4.8.3, and I have encountered the same issue across the board (websites fail to open, and applications do not launch). Here is what I have tried, without success:
Uninstallation and reinstallation
Configuring the firewall for Veyon applications and port 11100
Installing a previous version
I am continuing my investigation, though I have already spent quite a bit of time on this
Thanks in advance to anyone who can contribute!