After you add PowerShell servers with Kerberos authentication, the servers might not be found because they are not added correctly.


When you try to connect to a server, the server is not found in Kerberos database.

No valid credentials provided (Mechanism level: No valid
credentials provided (Mechanism level: Server not found in Kerberos
database (7)))


This error might be caused by several misconfigurations.
  • The PowerShell host is not part of a domain.
  • The host to realm mapping is not correct.
  • The Service Principal Name of the PowerShell host is not built correctly.
Note: Kerberos authentication does not work when the destination is an IP address.


When you add a PowerShell host using the Kerberos authentication, enter a DNS or NetBIOS destination.