NewsPublished 14 Sep 2026

Microsoft: September updates cause RDS failures on Windows Server

Source Bleeping Computer

windows

Description

Microsoft has confirmed reports that the September 2026 security updates cause Remote Desktop Services (RDS) failures on Windows Server systems. [...]

Impact

The impact includes disruption of Remote Desktop Services, preventing users from establishing or maintaining RDP connections. This can cause operational downtime for systems relying on remote administration and access. Related management tools may become unresponsive, complicating troubleshooting and management. Rolling back updates to restore RDS functionality removes the security protections provided by the September 2026 Patch Tuesday updates.

Defensive guidance

Microsoft provides Group Policy settings for various affected Windows versions to mitigate the RDS failures caused by the September 2026 updates. Administrators can apply these Group Policies to restore RDS functionality temporarily. Restarting affected virtual machines may also restore connectivity. Rolling back the problematic updates is another option but removes important security fixes. Microsoft is working on a permanent fix. Administrators should monitor official Microsoft advisories for updates.

References

bleepingcomputer.com/news/microsoft/microsoft-september-updates-cause-rds-failures-on-windows-server/ (opens in a new tab)

Community reviews

Loading reviews…

Description

AI analysisMachine-generated, updated 14 Sep 2026, 10:16 UTC

References

Community reviews

Related threats