Welcome to the forum! 
Since the forum is primarily an English one and you did type your post in English, please edit your topic title to match.
If you prefer to use Spanish, you may post in our EspaƱol section of the forum.
Why are you using 6.3? It is still a Release Candidate and may have issues. Have you tried 6.2, 6.1 LTS or 5.15 LTS?
Please also see: