Remote Desktop Services

Microsoft confirms September patches break Remote Desktop Services on Windows Server

Microsoft has verified that its September 2026 security updates are causing Remote Desktop Services failures across Windows Server 2012 and later, plus Windows 10 and 11. Affected systems show RDP connections dropping after a few minutes, sign-in errors, servers stuck loading the Remote Desktop Configuration screen, and related tools like MMC and File Explorer becoming unresponsive.

bleepingcomputer.com · 2026-09-14

Microsoft's September 2026 Patch Tuesday updates knock out Remote Desktop Services on Windows Server

Windows admins report that this month's cumulative updates for Windows Server 2019, 2022, and 2025 are breaking Remote Desktop Services, with servers working fine for a few hours before connections begin to fail. Existing sessions can get stuck unable to disconnect, new logins hang and time out, and in many cases only a hard reset restores service. Some administrators say uninstalling the September patch is the only reliable fix so far.

bleepingcomputer.com · 2026-09-10