Currently Being ModeratedJan 9, 2014 7:16 AM (in response to racersdream)
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The article below may be able to help you with this.
Click on the link to see more details and screenshots.
Resolve communication issues
Check the hosts file or TCP/IP filtering, which might cause communication issues between iTunes, ports, and servers.
Common errors: 1004, 1013, 1638, 3014, 3194, or 3000-3999. 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 your "hosts" file
After you've updated iTunes to the latest version, you can check the hosts file to be sure your computer can contact the update server.
If you’re using a Windows computer, follow steps in this Microsoft support article, noting that resetting the hosts file will affect software services that rely on hosts file redirects. If you're using Windows on a business computer, consult your IT department to be sure applications will still work correctly after resetting the hosts file.