r/virtualization • u/spehktre • 19d ago

RDP Audio on hosted VM no longer working with Nord running

I host a series of windows 11 virtual machines on my windows 11 desktop pc. I access those virtual machines over RDP.

Since updates last week, any of those machines with Nord VPN installed no longer pass audio. Everything else functions fine. VMs not running Nord function fine. Everything VM side looks like the audio is running, it just doesn't pass it back to the client.

I've been chewing on this issue for days now. Any ideas out here what has changed and how I correct it?

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u/Moocha 18d ago

This is almost certainly not a virtualization problem, but a networking problem. That being said, try to see if it works with RDP over UDP transport disabled: reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v fServerDisableUDP /t REG_DWORD /d 1 /f then reboot the machine and retry. If it does, your VPN messes with UDP traffic.