Unable to connect to Battle.net

[Rhodopsin]

I bought and installed the game. When I click to Battle.net it says;

You may be trying to connect to an invalid Battle.net server. If you are using a modem, you may need to manually connect to the Internet before connecting to Battle.net

What do I need to do?

[luke]

Probably you have eurobattle.net gproxy gateway selected, you can only connect to it through running the client. If you want to join one of the official servers, you have to switch the gateway before connecting by pressing the button next to "Battle.net"