Forum Discussion

Brass Contributor

Mar 31, 2020

Set "DNS Search Suffix List" via GPO leads to (webclient) connectivity loss

Hi together, if we set the "DNS Search Suffix List" via GPO (and also manually), it leads to a (webclient) connectivity loss. The Webclient doesn't find it's virtual machines anymore. If we d...

Ryanmangan

Copper Contributor

Mar 31, 2020

PeRich So changing the default DNS search suffix can stop communication to Azure services. You normally need to reboot the server for DNS to apply correctly. So even if DNS GPO's apply, you would most likely need to reboot afterwards. you should also check vnet dns setting and vm dns settings.

What is the RDSH host status via powershell https://docs.microsoft.com/en-us/powershell/module/remotedesktop/get-rdsessionhost?view=win10-ps

Does it state no heartbeat or unavailable.

let me know how you get on.

PeRich

Brass Contributor

Apr 01, 2020

Ryanmangan Thanks for your answer. It currently states "available" when the webclient connection is already not working anymore. Last heartbeat was 3 minutes before now with an reboot of the WVD machine. I rebooted the machine 1 hour later and again, last heartbeat = boot time = Available.

What could go wrong here and were could we start debugging?

(We have configured two own DNS servers on and 8.8.8.8, 1.1.1.1 for this VNET the name resolution is working.)