Preface: I’m running into this issue with increasing frequency. It seems related to Windows 10 2004 and/or 20H2 - prior to these versions everything was fine. All RDP sessions are being accessed over OpenVPN. The VPN connection seems to be working fine.
Issue: I have multiple clients who can RDP into their workstation once and it works fine. Once they disconnect, they can’t connect again unless the machine they’re connecting to is rebooted. A different client can connect without issue, once, but not again - same story. I can’t find any firewall blocking going on on either their main firewall or the Windows firewall. It’s like the service just stops responding to requests from any clients who have connected before until the reboot and then it starts all over again.
Anybody have any ideas?