Single Sign On not working when going through one FAS server - The RPC server is unavailable
Article ID: CTX461416
Updated On:
Description
Single Sign on through FAS is not working when going through specific FAS server.
if the affected FAS server is put into maintenance mode, all connections go through the remaining FAS server which works, confirming issue is related to one particular FAS Server.
When we check Certificate Authority, we get error The RPC server is unavailable. 0x800706ba (WIN32: 1722 RPC_S_SERVER_UNAVAILABLE).
Resolution
Make sure all windows updates are applied to the server machine.
Once windows updates were applied, issue was resolved.
Once windows updates were applied, issue was resolved.
Problem Cause
Issue seems related to - https://support.microsoft.com/en-us/topic/kb5004442-manage-changes-for-windows-dcom-server-security-feature-bypass-cve-2021-26414-f1400b52-c141-43d2-941e-37ed901c769c Data of issue occurring seems to match policy enforcement.
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