First of all, one topic for one question is enough. Since Spanish board is de-facto abandoned, I've removed your post out there.
Second of all, you'd better read
this before posting.
How do you expect any help if you didn't provide any details?
![Huh ???](https://mibew.org/forums/Smileys/default/huh.gif)
Where did you get your Mibew Messenger distribution? What version of Mibew are you talking about?
For now the only thing that I can advise you is to double check your configuration. But that is just a guess.