Can't connect to Battle.net

[Magepowers]

Hello, so I've been having problems recently with my Battle.net. I used to use it before when most of my friends would go on it, however, since most of them do not use eurobattle anymore, I want to play on the actual Battle.net realms. However, I have one problem. I always get a "Unable to connect to Battle.net!" screen anytime I try to connect to it. I've got my CD Key and everything, so I don't know what the problem is. I was wondering if maybe Eurobattle had somehow messed with me being able to connect to the actual realms. I uninstalled Eurobattle as well.

[Cen]

Did you choose the correct gateway?

[Magepowers]

It doesn't matter which gateway I choose. All of them result in the same message. In fact, Eurobattle gateways aren't even there anymore.

[Cen]

Maybe your firewall is blocking w3?

[Magepowers]

No, I have no firewall whatsoever, and windows defender is completely disabled.

[Cen]

Try to completely reinstall W3 (nuke the old folder). No idea really.
For eurobattle, this error would appear when firewall blocks or you are IP banned, not sure for official.