Hi Siebert9,
Welcome to Microsoft Answers Community Forum!
First thing I would like to suggest you is to uninstall and reinstall the device from device manager and verify if the yellow exclamation mark disappears.
You can also try updating your network driver by following these steps:
- Right click the Teredo Tunneling Pseudo-Interface
- Update Driver Software...
- Browse my computer for driver software
- Let me pick from a list of device drivers on my computer
- Select from the list and update the driver.
Also you may get this mark because the network adapter may not be compatible with Windows 7. Request you to contact the manufacturer’s website and download the latest driver/adaptor that is compatible with Windows 7.
To check for compatibility in windows 7, visit the below mentioned link:
http://www.microsoft.com/windows/compatibility/windows-7/en-us/default.aspx
Hope this helps resolve your issue!
Thanks & Regards,
Supreeth - Microsoft Support.
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