How to fix error code 0x800f0906: Windows couldn't connect to the internet to download necessary files in Windows Server 2016

Here are several methods you can follow to resolve the error code 0x800f0906:

1. Check your network connection: Ensure your network connection is stable and functioning correctly. Try restarting your modem or router to see if it resolves the issue.
2. Temporarily disable the firewall: Occasionally, the firewall may prevent the connection to the internet. Temporarily disable the firewall to check if it resolves the problem.
3. Update your system: Verify that your Windows Server 2016 is current with the latest updates. You can do this by navigating to Settings > Update & Security > Windows Update.
4. Utilise the DISM tool: The Deployment Image Servicing and Management (DISM) tool can repair the Windows image. Launch Command Prompt as an administrator and input the following command:

     DISM /Online /Cleanup-Image /RestoreHealth

5. Run the System File Checker tool: The System File Checker (SFC) tool scans and repairs corrupted system files. Open Command Prompt as an administrator and input the following command:

     sfc /scannow

6. Reset Windows Update components: You can revert the Windows Update components to their original settings. Open Command Prompt as an administrator and input the following commands one by one:

    net stop wuauserv
    net stop cryptSvc
    net stop bits
    net stop msiserver
    ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
    ren C:\Windows\System32\catroot2 catroot2.old
    net start wuauserv
    net start cryptSvc
    net start bits
    net start msiserver

7. Reach out to us or Microsoft support: If the steps above do not resolve the issue, contact us or Microsoft support for additional assistance.