Thank you for the quick response.
We have multiple users across from different locations disconnecting at random times. This happens across different hosts so looking more towards the gateway server or the application proxy as the cause.
- Our session host is: Server 2016 Version 1607 build 14393.3930 2.. We use a Wildcard 3rd party certificate that is still valid and expires in 2022.
- this is an interesting one, i did skip this as the update was from 2017 and our gateway is running Server 2019 with the latest CU. to eliminate this being the potential cause i tried installing update KB4025334 which doesn't look correct as its scope is for Windows 10 machines and it fail to install on our Server 2019 gateway and errors when trying to install with : "this update is not applicable for your computer". I have also posted on the setup guide page for more information on this specific update and how to install.