Yes that the address in my wallet, in the other hand I change the server, but always say synchroinizing, ¿is it means that i´m not conect to the net?
Shut down Electrum, then find the "blockchain_headers" file on your computer (C:\Users\YOURUSERNAME\AppData\Roaming\Electrum on Windows, ~/.electrum on Linux (and OSX I think)... and delete that file... Then restart Electrum.
If it still isn't working, make sure you are using at least v2.9.3 or v3.0.2 of Electrum. Anything older might run into syncing issues.