. It most commonly occurs due to network instability, expired security certificates, or misconfigured firewall settings on modern Windows versions like Windows 10, 11, and Server 2016–2022. Primary Causes Certificate Issues:
If a previous session is stuck in a disconnected or locked state: expired security certificates
If this guide helped you reconnect, share it with your team. For persistent issues, collect a Wireshark trace and a Windows RDP CoreTS event log, then consult Microsoft Support with that evidence. expired security certificates
Restart the (via PowerShell: restart-service termserv -force ) to regenerate a new certificate. 2. Adjust Security Layer Settings expired security certificates