Tried to add this 2012r2 RdWeb server (All roles) as a RdSessionHost under a parent 2019 RdWeb server (AllRoles)
Objective was to leave the 2012 server to serve old versions of Office and use 2019 server to serve new Office
It didn't go well
I can still logon to the Web portal, get a list of published apps, but when i start any app i get "This computer can't connect to the..."
the server shows errors
1306 Remote Desktop Connection Broker Client failed to redirect the user (UserName) Error:NULL
1296 Remote Desktop Connection Broker Client failed while getting redirection packet Error RDCB not ready for RPC communication
1280 Remote Desktop Services failed to join the Connection Broker on server RdWeb2019 Error Current amsg dropped, new msg override etc BS
the server in error 1280 is the wrong server but i can't find it anywhere to remove it