EuroBattle.net is private European Warcraft 3 PVPGN server.
Eurobattle.net server have build in GProxy reconnecting tool, so if your internet connection drops your easily reconnect.
To start with Eurobattle.net you need to have Warcraft 3 TFT installed and updated to patch 1.26a. For GProxy to work you will have to have .Net 3.5 and C++ Redistributable installed.
Now you need yo install Eurobattle.net client. You can download client here.
After the installation you need to register account. Go to http://app.eurobattle.net/register and fill forms and confirm your email address.
Now start euroloader.exe or Euroloader shortcut for desktop.
In WC3 make sure that that in Battle.net gateway selector Eurobattle.net or Eurobattle.net Gproxy is selected.
Now use your login information to log in and you can start playing.