sm0ke, the "procedure number out of range" message usually means you haven't upgraded Samba and you're trying to join a Win2k machine to the domain.
Jean-Philippe, I haven't the foggiest idea what could be going on here, as you haven't given any information about what's happening. Your internet connection is completely irrelevant to the operation of Samba, but it's impossible to get any idea of what's going on if you don't at least say what errors you're getting.