If no servers are showing, it could be because of these reasons: you're using a VPN that blocks connection, you have ports blocked used to communicate with the fgunz server, you're banned, or your firewall/anti-virus is not <properly> disabled and you didn't actually add gunz.exe to exception list
If you've checked all of that or wanna try something else; take a look at this and try these steps
https://developers.google.com/speed/.../using#windows
