An NPS extension dynamic link library (DLL) that is installed on the NPS server rejected the connection request.
Trying to diagnose an issue of a reason why an NPS server would not let a user in and come back with Access-Reject produces the following Reason in the event log
An NPS extension dynamic link library (DLL) that is installed on the NPS server rejected the connection request.
I recommend
Disable NPS MFA Extension
- Stop the Network Policy Server Service
- Create a backup of the key ‘HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AuthSrv\Parameters’
- Remove the values inside this key (DO NOT Remove the Parameters key itself)
- Start the Network Policy Server Service
To Re-Enable the NPS MFA Extension
- Stop the Network Policy Server Service
- Import the backup of the key ‘HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AuthSrv\Parameters’
- Start the Network Policy Server Service
You can always uninstall NPS Extension for Azure MFA Plugin
Retrying the access which should give you some better reason in the event log e.g. The RADIUS request did not match any configured connection request policy (CRP).
Once this is fixed you can reinstall the Plugin and re-authenticate it
loading...
loading...
Tags: An NPS extension dynamic link library (DLL) that is installed on the NPS server rejected the connection request., Azure, mfa, NPS Extension
Trackback from your site.