Do you see your Virtual Switch information in the Control Panel \ Network and Internet \ Network Connections section? If not, you can try creating your Windows Phone Emulator Internal Switch from Hyper-V again to see if this fixes your problem. Follow these steps:
1.) Open Hyper-V
2.) .
3.) " "
4.) " Windows Phone"
5.) , ( )
6.) " Windows Phone", ""
7.) "" ""
8.) " Windows Phone", " " , 5.
9.) F5 Visual Studio, .