What do I do when I upgrade win8.1 VPN error 720?

From the WIN8 update to 8.1 after the discovery of VPN landing 720 of the situation, the Internet to see the various methods of the unknown, here I introduce a relatively simple, small white can understand the method

1, first right click on this computer to open Device Manager, and then we found that the network adapter, WAN Miniport (ip/ipv6/Network Monitor) appears a yellow exclamation point, it seems that the problem is here.

2, right key update also did not use Click Uninstall found also can not uninstall the Internet there are many ways to modify the registry after the deletion, but for small white to the registry is simply a nightmare so we follow this method

3, right key WAN micro-port (IP)-Update driver software-Browse computer find driver

4. Select from the list of device drivers in your computer-suppress compatible hardware-and then pull down to find the Universal Mobile Broadband adapter-and then install it next.

5, after the installation will be prompted error Number 10 do not bother it back to Device Manager uninstall the newly updated mobile broadband adapter

6, then restart the computer this step is very important this restart the computer may be a bit slow, because the computer in the reinstall just deleted the adapter, restart the Device Manager after reboot to find the exclamation point disappeared, and now even a VPN try it

Note: The update drive may have a short network disconnect, if the failure of all with the yellow exclamation point adapter in the same way to repair.