SO I have the same issue: Server 2019 not setup as a domain. (Program they are using does not work well in domain setup.)
Have tried the CAL's as Per User and Per Device. I have tried EVERY solution so far that I can find online to stop the 60 minute time out. I have spent dozens and dozens of hours on this issue.
Nothing is seeming to work. I contacted Microsoft through support benefit in the MAPS program and they say they do not help with this type of thing.
I found this question asked dozens and dozens of times in forums all over. Seems Microsoft needs to put out a once and for all answer and solution to this problem.
Any other solutions others have found would be really appreciated. I CANNOT make this s domain as mentioned earlier because of the software and because of remote branch office they must use RDP to connect to run this program and not client/server application.
ANY help is greatly appreciated.