Logons via the Network Policy Server (NPS) fail with 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."
Assume the following scenario:
- A certificate-based logon is performed with user or computer accounts to log them on to a wireless (IEEE 802.11 or Wireless LAN) or wired network (IEEE 802.3), or to a remote access connection (e.g. DirectAccess, Routing and Remote Access (RAS), Always on VPN ).
- As a server for authentication, authorization and accounting (AAA), the company uses the Network Policy Server (NPS) from Microsoft.
- Logging on to the network is no longer possible.
- The Network Policy Server logs the following event when a logon attempt is made:
Network Policy Server denied access to a user. [...] 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.Der Netzwerkrichtlinienserver hat einem Benutzer den Zugriff verweigert. [...] Authentifizierungsfehler aufgrund der Nichtübereinstimmung von Benutzeranmeldeinformationen. Der angegebene Benutzername ist keinem vorhandenen Benutzerkonto zugeordnet, oder das Kennwort war falsch.