Error 3194 when updating
It is important on these occasions for the i Phone users looking to upgrade are that they opt for a destination without any proxy setting.
The above explained ways are the basic approaches you should try to resolve i Tunes error 3194.
On Mac, open System Preferences, then Network, and check your chosen connection options are working.
Now check your router isn't blocking your access to Apple's servers: bypass the router and connect directly to your modem via ethernet cable, then restart the modem (and the Mac or PC).
Have another go at restoring/updating the i Phone or i Pad to see if the problem has been resolved. The connection your machine is trying to establish with Apple's servers is being blocked by something.
Depending on what you've got turned on, this could be related to TCP/IP filtering, a firewall, or other security software or features on your Mac or PC.
You'll now see the hosts file, which should look something like this: You're looking for "gs.apple.com" in one of the entries; when you find it, add a hash symbol (#) and a space to the beginning of that entry. You'll be asked for the filename; just press Return, then Control-X. PC users would be well advised to follow the advice on Microsoft's support website.
You have to struggle a bit while going for upgrade, no doubt is there on this regard. Hence, you should try once disabling the anti-virus. On this context, it is always advisable to go with the appropriate antivirus.In this article we show how to fix Error 3194, Error 17, ;'This device isn't eligible for the requested build' and related errors. The first solution you should try, and the simplest, and a step that's generally a good idea anyway, is to update i Tunes. On PC, the process is similar, but you start from a different menu: click Help, then Check For Updates.On Mac, open i Tunes and click i Tunes in the top menu bar, then 'Check for Updates...' Assuming you're not up to date, i Tunes will find and offer the latest version update: 'A new version of i Tunes (12.5.4) is available. Have another go at restoring/updating the i Phone or i Pad to see if the problem has been resolved. Make sure your internet connection is working properly.This sort of block prevents some files getting accessed.For the error 3194 in i Tunes, disabling the firewall sometimes work well.