topic Re: Horizon RDSH Servers weird behavior in Horizon Desktops and Apps

Horizon RDSH Servers weird behavior

IamRamZ — Thu, 30 Jul 2020 15:28:13 GMT

So i have Physical Servers with Hzn agent installed and added manually to a pool. Everything works fine for months, then we get this weird issue where one of servers seems to lose trust with the domain, which is fine because its easy enough to fix. The weird issue is when you do try and make any changes, hardware, software, attempt to repair the domain trust, once rebooted all changes are reverted back to where it was before the reboot.

This is the third time its happened between 2 different servers, and only affects servers that are configured with Horizon Agents. Anyone see this behavior before?

Re: Horizon RDSH Servers weird behavior

sjesse — Thu, 30 Jul 2020 15:36:15 GMT

Do you have appvolumes installed? If so you need to uninstall the appvolumes agent, do your changes and reinstall it.

Re: Horizon RDSH Servers weird behavior

IamRamZ — Thu, 30 Jul 2020 16:06:37 GMT

Thanks, but we arent using appvolumes, its not installed or configured.

Re: Horizon RDSH Servers weird behavior

IamRamZ — Thu, 30 Jul 2020 16:18:15 GMT

also, uninstalling the HZN agent and rebooting also reverts the server back to before the reboot.

Re: Horizon RDSH Servers weird behavior

sjesse — Thu, 30 Jul 2020 16:49:58 GMT

The horizon agent wouldn't do this, you say physical machines, are they really full machines and not virtual machines not using a cloning procedure? If they are a real physical machines then I'd check for any group policy or something else that may be pushing something down to presist changes. I think its just a windows 10 feature, but look for things like

Unified Write Filter (UWF) feature | Microsoft Docs

Re: Horizon RDSH Servers weird behavior

IamRamZ — Thu, 30 Jul 2020 17:11:39 GMT

Yeah these are full machines (not virtual) with no cloning. I thought of group policies, but the one server that was affected a month ago was not receiving the same policy as the server today, but will have a look and compare between the 2. thx

Re: Horizon RDSH Servers weird behavior

IamRamZ — Thu, 30 Jul 2020 18:33:10 GMT

GPO's doesnt seem to be affecting, couldnt find anything related to uwf. may just re-os and monitor

Re: Horizon RDSH Servers weird behavior

Shreyskar — Sat, 01 Aug 2020 14:56:35 GMT

Are you making these changes in registry particularly or somewhere else?

Re: Horizon RDSH Servers weird behavior

IamRamZ — Mon, 03 Aug 2020 18:37:15 GMT

there are some registry changes made, but nothing that i could see causing these issues.