Servers Not Found in Kerberos Database

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

Problem

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)))

Cause

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.

Solution

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