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KB Details - KB5123099

KB5123099

Important ⚠️ Yes
Title
September 8, 2026—KB5123099 (OS Build 14393.9512) | Microsoft Support
Severity
Important
Known Issues
⚠️ Yes
Known Issues Count
1
OS Builds
14393.9512
Known Issues Details
#1 - Remote Desktop Services instability
Status: N/A
Symptoms: RDP connections failing after several minutes, sign-in issues, or servers hanging at "Please wait for the Remote Desktop Configuration".
Workaround: N/A
Affected: N/A
Description
[N/A] Remote Desktop Services might stop responding after the September 2026 security update. Some organizations might experience issues with Remote Desktop Services becoming unstable, resulting in RDP connections failing after several minutes, sign-in issues, or servers hanging at "Please wait for the Remote Desktop Configuration".

⚠️ Known Issues: Remote Desktop Services instability
Symptoms: RDP connections failing after several minutes, sign-in issues, or servers hanging at "Please wait for the Remote Desktop Configuration".
Microsoft Article
AI Enriched At
September 30, 2026 at 1:10 AM
Date Added
September 9, 2026 at 1:10 AM

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