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