Edit: This was never solved.
I set up a machine with Fedora 43 and Plasma most recent version. RDP is enabled and I verified I can connect to it via Remmina from my laptop which is running the same versions.
I delivered the machine to my friend and RDP worked for a few days, only now it quits within a few seconds of attempting to connect. I’ve tested KRDC and Thincast remote desktop clients and the behavior is similar.
systemctl status --user app-org.kde.krdpserver
[unraid@fedora ~]$ systemctl status --user app-org.kde.krdpserver
● app-org.kde.krdpserver.service - KRDP Server
Loaded: loaded (/usr/lib/systemd/user/app-org.kde.krdpserver.service; enabled; preset: disabled)
Drop-In: /usr/lib/systemd/user/service.d
└─10-timeout-abort.conf
Active: active (running) since Thu 2026-03-26 07:35:26 CET; 12h ago
Invocation: f744ea014b624520945adce6e989efc9
Main PID: 2879 (krdpserver)
Tasks: 13 (limit: 8130)
Memory: 126.6M (peak: 143.5M)
CPU: 690ms
CGroup: /user.slice/user-1000.slice/user@1000.service/app.slice/app-org.kde.krdpserver.service
└─2879 /usr/bin/krdpserver
Mar 26 19:31:07 fedora krdpserver[2879]: [19:31:07:161] [2879:00001c42] [ERROR][com.freerdp.api] - [rdp_peer_handle_state_active]: PostConnect for peer 0x561124b9b680 failed
Mar 26 19:31:07 fedora krdpserver[2879]: [19:31:07:161] [2879:00001c42] [ERROR][com.freerdp.core.transport] - [transport_check_fds]: transport_check_fds: transport->ReceiveCallback() - STATE_RUN_FAILED [-1]
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “/org/freedesktop/portal/desktop” interface "org.freedesktop.portal.Remo>
Mar 26 19:31:07 fedora krdpserver[2879]: QDBusConnection: error: could not send message to service “org.freedesktop.portal.Desktop” path “” interface “org.freedesktop.portal.Session” member “Close”: Object pat>
I have access to the machine via ssh, which is how I got the log snippet. How can I attempt troubleshooting via ssh, restarting or reinstalling software to get rdp back working.