Connection issues with Windows 11 desktop

[toristorii]

I'm getting the "Unable to add surface" error when I try to connect to my Avid Doc and S1's on a Windows 11 PC, with the latest version of EUCON.



I've been using them with a macbook - same router, same wifi, etc., just fine. I installed eucontrol on my windows 11 laptop, works great there too. So it's something about my PC, not the hardware or network.


I've tried using both wifi and direct ethernet connection from the PC. I have been configuring corporate routers and firewalls for decades, I understand networking. There isn't a problem with my network.



I did a clean install of windows 11 (different partition) and with nothing else whatsoever installed on the machine, just Windows 11 and EUCON, it still won't connect. I updated the network drivers (Intel) to the absolute latest, still no dice. I can't count the number of times I've completely uninstalled and reinstalled EUCON and/or rebooted.



The only thing I can think of is the network card built into the motherboard is for some reason incompatible, because again, both my MBP and Windows 11 laptop work great with exactly the same EUCON version, config, same router,same cables.



Has anyone had a similar issue?


Think a network card will fix it?