Hello,
I just migrated an NPS server from a 2008 R2 to 2012 r2 server. I exported and imported all settings, verified everything was correct.
Now am unable to authenticate, I am getting event ID 6273 "Network Policy Server denied access to a user."
Reason: "Authentication failed due to a user credentials mismatch. Either the user name provided does not map to an existing user account or the password was incorrect."
I have verified correct user credentials. This is now happening for all users since it was migrated.
Does anyone know what is different in NPS on 2012R2 vs 2008R2 that would cause this? Or how I can troubleshoot this?
Thank you.