Q: Error 52

Starting of problem...

the phone shows "searching..."

Checked the sim with other phone, no problem.

So  reset all content and settings, then shows "can't connect to apple server at this time.."

Then click restore in itunes after connecting to PC.

Now It stuck, itunes say "Can't restore, unknown error (52).."  or error (3014)

Any solution to this?

OR

What I have to do to get my phone back working fine.