Re: XPS 8700 Internet stopped working after windows update 1709
Did you open the Network and Sharing page in Windows and configure your network, making sure it's set to use the RealTek and not one of the virtual adapters listed in Device Manager?
I disabled the virtual ethernet (which is set to default switch) and the WiFi adapter. The only network that is enabled is the RealTek.
Is that what you meant?