I have been using pfsense for about 10 years for my wifi. Users get the captive portal then authenticate with their AD creds via radius (NPS running on Windows box). For some reason, it has stopped working. So far, I have tried a different Windows box for NPS, rebuilt pfsense from scratch but I keep bumping into the same issue
Windows logs
MS Chap v2
Reason Code 16
Reason: Auth failed due to user creds mismatch
pfsense logs
invalid creds.
I have tried this with numerous accounts, same issue. Whats more is the account gets locked out after 3 attempts. This is not a password entered incorrectly, I have hundreds of users getting the same.