Troubleshooting Kerberos Authentication Issues with SCCM Script

Troubleshooting Kerberos Authentication Issues with SCCM Script

In the realm of System Center Configuration Manager (SCCM), Kerberos authentication errors can pose a significant challenge. This article outlines the steps to address these issues and remotely execute PowerShell scripts using PsExec.exe and WinRM.

Troubleshooting Kerberos Authentication Errors

To combat Kerberos authentication errors with SCCM client machines, follow these steps:

1. Install the latest Windows updates, particularly security updates addressing Kerberos issues such as KB5055523 for Windows 11 24H2. These updates help resolve known Kerberos password rotation failures that cause authentication problems [1].
2. Check if Credential Guard or other security features are interfering, as they can impact Kerberos ticket handling and password rotations [1][3].
3. Utilise the Windows registry Kerberos protocol entries to troubleshoot and test authentication. Enable detailed Kerberos logging or adjust parameters like TgtRenewalTime to observe ticket renewals and failures [3].
4. Ensure that machine accounts are not stale or disabled due to password not rotating properly.
5. Review client and server event logs for Kerberos-specific errors, including ticket expiration or encryption failures.
6. Validate Service Principal Names (SPNs) and ensure there are no duplicate or misconfigured SPNs that cause ticket issuance issues.

Remotely Running PowerShell Scripts on SCCM Client Machines

To remotely run PowerShell scripts on SCCM client machines using PsExec.exe and WinRM, follow these steps:

Prerequisites:

• Enable and configure the WinRM service on target client machines.
• The executing user must have administrative privileges on remote clients.
• Target machines must allow inbound remote PowerShell commands through firewall rules.
• PsExec.exe should be available on the management machine where the script will run.

CSV Import Format for Target Computers:

Create a simple CSV file listing target computer names or IPs with a header column such as .

Example PowerShell Approach with PsExec:

1. Import the CSV list:

1. Loop through each computer and execute the script remotely using PsExec along with WinRM:

• Alternatively, use PowerShell remoting directly with if WinRM is configured:

In summary, ensure that Windows updates addressing Kerberos issues are applied on SCCM clients, use registry and event logs to troubleshoot Kerberos ticket problems, and prepare a CSV with a simple computer name column for bulk PowerShell execution using PsExec and WinRM, following prerequisites such as enabled WinRM, proper privileges, and firewall settings [1][3]. The CSV file should be in a specific format, and the script is compatible with CMTrace.exe. Additionally, the script attempts to resolve DNS issues related to the error.

1. To resolve Kerberos authentication issues in SCCM, it's essential to utilize technology such as Windows updates and registry entries, as well as troubleshooting techniques like Kerberos logging and verifying Service Principal Names.
2. When working with SCCM, technology like PsExec.exe and WinRM can facilitate remote execution of PowerShell scripts, making system management more efficient and effective.

Read also: