Move to “Control Panel\All Control Panel Items\Administrative
Tools”, Here remove each and every Virtual Machines listen under.
Remove Hyper-V and then Restart the System.
After restarting, Install Hyper-V once again.
Open Visual Studio and Run any Windows Phone 8 app to start the
emulator.
It will create again all needed Virtual Machines( you can notice
from Hyper-V Manager tools)
While loading emulator, it will prompt for letting the emulator
access the internet. say yes.
Let the emulator and your project fully load
Now you need to shutdown the emulator( by closing directly or use
Shift + F5) and close the Visual Studio.
Now Open Network and Sharing Centre
Click change Adapter Settings (Listed on the left hand side)
Now you will see there - “Control Panel\Network and
Internet\Network” Connections. some new adapter created by HyperV,
they should be called “vEthernet(…)”
Here, You need to focus on the vEthernet( Virtual Switch) and
vEthernet (Internal Ethernet Port Windows Phone Emulator Internal
Switch)
Now right click on vEthernet( Virtual Switch) and click on the
properties and navigate to the sharing tab.
Here, Choose Allow other Network users to connect and choose the
vEthernet (Internal Ethernet Port Windows Phone Emulator Internal
Switch) as the adapter and then save the changes and close Windows.
Everything work now.(Make sure your Wi-fi is working properly)