While we're not exactly sure as to what causes the problem, but there is an easy solution that does work.
That's precisely what we'll take a look at in this post.i Cloud Backup / Restore One of the earliest solutions is to restore your i Phone not via i Tunes but through i Cloud.
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Now restart the i Phone 4 and try using your data plan, it should work perfectly.
You may want to temporarily disable Wi Fi on the i Phone to be sure that your are using the data network and not Wi Fi while you test this. No problem, setup an i Phone 3G or 3GS as a pre-paid i Phone, it’s even easier since you can just swap sim cards directly!
Faced with error 3194 in i Tunes while restoring or updating your i Phone or i Pad? As they have worked for me on several occasions, I don't see any reason why they can't click for you as well.
Needless to worry about the issue as it can be fixed—without breaking much sweat. If you know any other trick to fix this issue, feel free to share it with us in the comments below.