Microsoft’s security updates released on September 8, 2026, have sparked significant problems concerning Remote Desktop Protocol (RDP) connections across all Windows versions. After installation, users are unexpectedly logged out and face difficulties logging back in, leading to widespread reports of service disruptions.
Overview of the Updates
On September 8, Microsoft issued security updates for several versions of Windows Server and the latest Windows client versions. Notably, these updates aimed to enhance audio redirection capabilities in Remote Desktop sessions but have inadvertently resulted in serious connectivity issues. Users have described being logged out mid-session or unable to reconnect.
For detailed information on specific updates, refer to:
Confirmation of Issues
Reports of RDP issues were confirmed by Microsoft, which acknowledged that various Windows devices with RDP enabled are facing instability. These instabilities manifest through timeouts, login challenges, and frozen servers during RDP session configurations.
Affected systems include:
- Windows 11 versions from 23H2 through 26H1
- Windows 10 from 21H2 to 22H2
- All supported Windows Server editions since 2016
Possible Workaround
Microsoft has suggested a temporary fix for those severely impacted. Administrators may regain temporary access to inaccessible virtual machines by pausing and rebooting them. Another recommendation from the community is to disable Remote Audio in RDP settings, which might alleviate some of the problems associated with the recent updates.
For updates from Microsoft regarding these RDP issues, check their Known Issues section and keep an eye on developments as Microsoft investigates these reported faults.