Forum Discussion

Copper Contributor

Oct 18, 2022

Solved

RDP not working on hyper-v server 2022

I can only connect to any hyper-v server from hyper v manager on the fysical host. When the connection is up and running i can start MSTSC from my local windows 11 and connect to the server and take...

Hyper-V

networking

windows server

Ferry001
Sep 03, 2023
It turned out it was not the anti virus but the amount off processors. You need at least two of them
markolo68

markolo68

Copper Contributor

Sep 20, 2023

Thank you very much for your detailed response.

We traced the problem back to Splashtop remote access software. Once we uninstalled Splashtop and went back to TeamViewer the black screens stopped and we don’t see the continuous Dwminit errors in the Application logs anymore.

We too only observed this problem on Windows Server 2022. The Hyper-V hosts we manage that run Windows Server 2019 do not suffer from this problem when Splashtop is installed.

We still have the Matrox Display Driver error in Device Manager on the Server 2022 Hyper-V host, but it no longer seems to result in the black screens.

It sounds like our Splashtop problem was a very similar problem to your issues with ConnectWise ScreenConnect. In our case, we are happy to switch back to TeamViewer Host. I suspect it is a GPU driver issue in Server 2022, but we are not going to pursue the problem any further at this stage.

I hope this helps you in some way.

SBSBOX

Brass Contributor

Sep 20, 2023

Hey thanks you so much for your response, that actually helps a lot and certainly narrows it down for me. I was suspecting it might be the ScreenConnect after all the other things I have tried. I think I will open a case with them and see what they say. It's interesting that SC works perfectly in Server 2022 VM but not physical host. So bad interaction with Matrox driver I guess or MS Remote Display adaptor.

Thanks again, it was very helpful.

markolo68
Copper Contributor
Sep 20, 2023
A very similar problem to what we saw. In our case, Splashtop worked fine on all the Server 2022 VMs. It only broke the physical host.

The fact that we still see the GPU error in Device Manager, even with Splashtop uninstalled and after a reboot, makes me think it has something to do with the Matrox GPU when running Server 2022.

Good luck with your search and post back here if you get to the bottom of it!