Windows 10 - reset TCPIP

netsh int ip reset c:\resetlog.txt

And if you notice an element that says not resetting
head to the following key and give full permissions

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Nsi\
    {eb004a00-9b1a-11d4-9123-0050047759bc}\26

reference
http://windowsreport.com/windows-sockets-registry-entries-required-for-network-connectivity-are-missing/

Alternate fix sometimes needed:
 
             netsh winsock reset 

This article also show how to remove and then reinstall TCPIP
Hint: export the Netbios key, delete some keys, install protocol, select "Have Disk" and point to C:\windows\inf and pick tcpip.