Rebuild IP / Network Stack

1. In the search box on the taskbar (click Start), type command prompt, right-click the command prompt result and then select Run as administrator and confirm.
2. At the command prompt (decline restarting your machine until you have entered the final command):
   1. Type ipconfig /release and press Enter.
   2. Type ipconfig /flushdns and press Enter.
   3. Type ipconfig /renew and press Enter. (this will stall for a moment)
   4. Type netsh int ip reset and press Enter. (don’t restart yet)
   5. Type netsh winsock reset and press Enter.
3. Now restart your machine using Start > Power > Restart once more and test to see if the issue is resolved.
4. Right click the network adapter > Properties
   

5. Untick TCP / IPv4 > OK > Open properties again and re-tick TCP / IPv4