I had a problem recently on Windows 8.1 where trying to create a VPN connection would just cause the Windows interface to freeze and no connection made. After clicking connect, a number of different WAN Miniport adapters appear in Device manager under Network adapters (they may also be visible by clicking View > Show hidden devices) with yellow exclamation marks. They are mostly different types of VPN connections such as PPTP and L2TP. The way to fix them is to uninstall and then reinstall the devices – unfortunately, they aren’t as easy to remove as normal devices and do not allow you to uninstall. These are the steps I followed to uninstall and reinstall the devices;
Continue reading Windows 8.1 VPN Connection Freeze/Failure