Hi @Dave K There seems to be some configuration issues with NPS Server configuration. I would suggest you to compare your NPS configuration with the settings mentioned in below sections of this document: https://learn.microsoft.com/en-us/azure/active-directory/authentication/howto-mfa-nps-extension-rdg#configure-nps-components-on-remote-desktop-gateway
- Configure NPS components on Remote Desktop Gateway
- Configure NPS on the server where the NPS extension is installed
For debugging you can look into Network Policy and Access Services event log filter on the NPS Server as highlighted below:
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