Iphone could not be restored.An unknown error occurred (17).
iPhone 5s, iOS 7.1
Hi there Unionlights,
You may find the troubleshooting steps in the article below helpful.
Resolve specific iTunes update and restore errors
http://support.apple.com/kb/ts3694
Resolve communication issues
Related errors: 17, 1004, 1013, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, or 3200. These alerts refer to gs.apple.com, say "There was a problem downloading the software," or say the "device isn't eligible for the requested build."
Check the hosts file or TCP/IP filtering, which might cause communication issues between iTunes, ports, and servers.
-Griff W.
Iphone could not be restored.An unknown error occurred (17).