My friends started to play this RU server... For them, everyhting is OK, but for me... Everytime i type in my nick and pass it goes up to servers and then it just crashes with a "Don't send" and a Critical error... So what should i do, to be able to login?
I already tried to re-install L2 but it didn't help... So, any suggestions?

At a lot of ru servers needs to change location to russia at control panel, if you want us to help you, post an error message

Here is the crit.error

General protection fault!

History: FD3DDynamicVertexStream::AddVertices <- FD3DRenderInterface::SetDynamicStream <- UBeamEmitter::RenderParticles <- AEmitter::Render <- FDynamicActor::Render <- deferredActors <- RenderLevel <- FLevelSceneNode::Render <- FPlayerSceneNode::Render <- UGameEngine::Draw <- UWindowsViewport::Repaint <- UWindowsClient::Tick <- ClientTick <- UGameEngine::Tick <- UpdateWorld <- MainLoop

Btw, I'm Lithuanian.

Turn off your antivirus.
Worked for me.

If it doesn't help you, then I have no idea.