Azure MFA NPS Extension: Limitations, Costs & On-Prem Alternatives (2026)
The Azure MFA NPS Extension has been the go-to answer for adding a second factor to Microsoft NPS and securing VPN, Wi-Fi, and other network access protected by RADIUS authentication for years. It’s free (if you have the right license), it installs in under an hour, and it works. Until it doesn’t — and when it doesn’t, the failure mode is usually a structural one, not a configuration problem you can fix with a...
Hardware Tokens for Azure MFA
There are currently two ways to implement an Azure hardware token for Azure Multi-Factor Authentication: With classic OATH tokens for Azure MFA with hard-coded secret keys, such as Protectimus Two. To make use of one of these you’ll need Azure AD Premium P1 or P2 license. With a programmable hardware token for Azure MFA Protectimus Slim NFC or Protectimus Flex which is a replacement for an authentication app from Microsoft. This Azure...