Hi,
Additional information will help us to identify the cause of this issue. We would like to know the steps that you have taken.
Meanwhile, we would suggest that you follow these steps to install Microsoft Teredo Tunnel Adapter Driver:
- Press Windows key + R to open Run dialog.
- Type hdwwiz.cpl, and then press Enter to open Device Manager.
- Click on Network Adapters from the list.
- Click on Actions tab at the top.
- Select Add Legacy Hardware.
- Click on Next button.
- Make sure that Search for and install the hardware automatically (Recommended) option is selected, and then click on Next button.
- Click on Next button again.
- Under Common hardware types selection, look for Network Adapters and click on it.
- Click on Next button.
- Under Manufacturer column, select Microsoft.
- Under Network Adapter column, select Microsoft Teredo Tunneling Adapter
- Click on Next button.
- Click on Next button again.
- Click on Finish.
We look forward for your response.