tracert www.google.com

::  resets the ipv4 interface
netsh interface ip reset

:: flush and reregister DNs
ipconfig flushdns
net stop dnscache
net start dnscache
ipconfig /registerdns

:: clear persistent routes
 route print -f

 :: start / restart mrxdav
 net stop netbt
 net stop mrxdav 2>nul
 net start mrxdav
 net start netbt

 ::  clean the arpcache
 arp -a -d
  :: I might have the order of the switches backwards and the order matters, so if that doesnt do anything put the -d before the -a

 :: make sure winhttp and webclient  services are running (this is a mystery to me / neither appear necessary, but both have fixed my problem on various occasions)

 net start webclient
 net start winhttp