Thanks to all.
I have resolved my problem.
;D ;D ;D
In 1º place, thanks to all.
I made as it said perpetd and it improved a little.
I left to have problems with VNC, it works ok.
I have a small computer network in house.
Before I had access to any PC of the work group in the network.
I shared files and printers and used...
Separate names with a comma.