Hi german000,
If you are receiving an error about the server could not be contacted when trying to restore the iPad, I would suggest that you troubleshoot using the steps in this article -
iTunes for Windows: iTunes can't contact the iPhone, iPad, or iPod software update server
If I am misunderstanding your issue, please reply with a full explanation of what you are attempting to do and I will continue to assist.
Thanks for using Apple Support Communities.
Best,
Brett L