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Fix SCCM Client WMI Issues: Access Denied, Connection Failures, and Other Errors

2024/10/29
PC Repair

Key Notes

  • Common WMI problems include “WMI Invalid Class, ” “Connectivity issues, ” and “Access Denied” errors.
  • Utilizing scripts to restart WMI services can quickly resolve many issues.
  • Adjusting permissions and security settings often resolves access issues.

Navigating and Resolving SCCM Client WMI Issues

Windows Management Instrumentation (WMI) is a fundamental component in System Center Configuration Manager (SCCM) that facilitates effective management of client-server communication and remote Windows PC administration. However, IT professionals frequently encounter various WMI-related issues that can disrupt these processes. This guide aims to provide comprehensive solutions to common WMI problems, empowering SCCM users to troubleshoot and resolve their issues efficiently.

Resolving Common SCCM Client WMI Issues

This guide focuses on three prevalent SCCM Client WMI problems:

  1. WMI Invalid Class
  2. WMI Connectivity Problems
  3. Access Denied Errors

Step 1: Troubleshoot WMI Invalid Class Errors

Upon encountering WMI Invalid Class issues, users might see error messages indicating failure to initialize necessary WMI classes. To solve this, create a script to restart relevant services. Open Notepad, input the code below, and save it with a.cmd extension: 

net stop "Background Intelligent Transfer Service" net stop "COM+ Event System" net stop "Microsoft Software Shadow Copy Provider" net stop "Volume Shadow Copy" net stop Winmgmt net stop WSearch cd /d %windir%\system32\wbem dir /b *.dll > dlllist.txt dir /b *.mof > moflist.txt dir /b /s *.mfl > mfllist.txt for /f %f in (dlllist.txt) do regsvr32 /s %f for /f %s in (moflist.txt) do mofcomp %s for /f %s in (mfllist.txt) do mofcomp %s net start "Background Intelligent Transfer Service" net start "COM+ Event System" net start "Microsoft Software Shadow Copy Provider" net start "Volume Shadow Copy" net start Winmgmt net start WSearch del dlllist.txt /Q del moflist.txt /Q del mfllist.txt /Q wmiprvse /regserver

Pro Tip: Make sure to run the script as an administrator to ensure proper execution.

Step 2: Fix WMI Connectivity Problems

WMI connectivity issues also arise, affecting SCCM operations. Common error messages indicate connection failures, which often point to the need for a consistency check in the WMI repository. Execute the following command:

winmgmt /verifyrepository

To rectify connectivity errors, restart the WMI Service by using these commands within an elevated Command Prompt: 

sc config winmgmt start= disabled net stop winmgmt /y cd %windir%\system32\wbem for /f %s in ('dir /b *.dll') do regsvr32 /s %s sc config winmgmt start= Auto net start winmgmt dir /b *.mof *.mfl | findstr /v /i uninstall > moflist.txt & for /F %s in (moflist.txt) do mofcomp %s

Step 3: Address Access Denied Errors

The “Access is denied” error often results from insufficient user permissions. To address this:

  1. Press Win + R, type “WMImgmt.msc, ” and hit OK.
  2. Expand Console Root, right-click on WMI Control (Local), then select Properties.
  3. In the Security tab, select ‘Everyone, ’ ensuring all Allow checkboxes are checked.
  4. Access the DCOM settings by pressing Win + R, typing “dcomcnfg, ” and hitting OK.
  5. Navigate to Component Services > Computers > My Computer, right-click, and select Properties.
  6. In the Default Properties tab, enable Distributed COM and set Default Authentication Level to Connect.
  7. Adjust the COM Security settings if necessary, granting full permissions to everyone.

Pro Tip: Always verify user account credentials to avoid permission-related issues.

Summary

This guide explored how to troubleshoot and resolve common WMI problems related to SCCM Client operations, including “WMI Invalid Class, ” “WMI Connectivity Problems, ” and “Access Denied Errors.” By following the outlined steps, IT professionals can efficiently address these issues to ensure smooth SCCM functionality.

Conclusion

Dealing with SCCM Client WMI issues is crucial for maintaining operational efficiency in IT environments. Regular troubleshooting, accompanied by scripts and permission adjustments, can mitigate most common troubles. Implement these strategies, and you can keep your SCCM systems robust and reliable.

FAQ (Frequently Asked Questions)

How can WMI issues be resolved in SCCM?

Most WMI issues in SCCM are minor and can often be fixed by simply restarting the WMI service or related services as detailed in this guide.

How to address SCCM client problems?

You can use the repair client feature in SCCM. Open the Configuration Manager console, navigate to the affected device, right-click, and select Repair Client.

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