We're getting random disconnects on one of our RDS 2012R2 Session Hosts. Client machines that get disconnected all have the same Event ID 1026 disconnect reason under TerminalServices-ClientActiveXCore: RDP ClientActiveX has been disconnected (Reason= 4360). I can't find any information on this disconnect reason, so I am hoping someone here can point me in the right direction. Based on some searching, it appears this might be network related, but, again, I don't know because I can't find any information on these disconnect reason codes.
A couple other bits of information:
1. On the session host itself under TerminalServices-LocalSessionManager, the Event ID 40 disconnect reason is always the same as well: Session xx has been disconnected, reason code 0.
2. All clients connect internally through the RDWeb portal. We have no Gateway at this point.