In AWS environment recently we observe user session freezing once they disconnecting and reconnecting existing RDP session in windows server 2025.
Symptom:
Unable to reconnect to disconnected RDP session on Windows server 2025, session struck on welcome screen.
Cause:
Issue causing by February2025 buggy patch KB5051987.
Resolution:
Microsoft has released a patch KB5053598 (OS Build 26100.3476) to fix this issue.
To fix this, uninstall KB5051987 and test your RDP session after reboot , if it works fine , install KB5053598 which will replace KB5051987 and existing RDP session will work fine while reconnecting.