How to solve the error code 0x800f0906: Windows couldn't connect to the internet in Windows Server 2012 R2

There are several steps you can take to solve the error code 0x800f0906 in Windows Server 2012 R2:

1. Check your internet connection: Make sure your server is connected to the internet and that your network settings are configured correctly.
2. Disable firewall: Temporarily disable your firewall to see if it is blocking the connection.
3. Check for updates: Make sure your server is up to date with the latest updates and patches.
4. Reset Windows Update components: Resetting the Windows Update components can help resolve issues with the update process. To do this, open Command Prompt as an administrator and type the following commands:

   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
   

5. Use the System File Checker tool: The System File Checker tool can help identify and repair corrupted system files. To use this tool, open Command Prompt as an administrator and type the following command:

   sfc /scannow
   

6. Run the DISM tool: The Deployment Image Servicing and Management (DISM) tool can help repair the Windows image. To use this tool, open Command Prompt as an administrator and type the following command:

   DISM /Online /Cleanup-Image /RestoreHealth.