You’r early adopters of Windows 11 25H2 can’t stay connected for more than 10 minutes. The Workspace App disappears, and the reliability monitor points to ntdll.dll. You’ve reinstalled 5 times, but the crash persists.
Symptom Matrix:
Faulting Module: ntdll.dll, Exception: 0xc0000005, CWA Version: 2511.
Architectural Root Cause:
A change in Windows 25H2 API behavior for memory allocation triggers an unhandled exception in the Citrix HDX rendering engine.
Surgical Fix:
Mandatory upgrade to Workspace App 2511.1 (January 2026 release) and disabling the “Connection Strength Indicator” via GACS.
A single DLL crash can hide 10 other OS-level bottlenecks. [Get a clinical analysis of your endpoint performance]
About the Author: Jabran Malik
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