Why Exits the Error 3194 in iTunes to update or restore iPhone, iPod, iPad?
These errors can occur when we are going to upgrade or even restore our iOS devices, for various reasons that we leave then:
iTunes, Apple's media player is not able to communicate with the server upgrade and restoration (gs.apple.com). *
We do not have the latest version of iTunes.
If you're going to do the downgrade to a previous firmware version, it is likely that the version of iOS you're trying to install on your device is no longer signed by Apple.
* The communication failure is usually caused when the connection is being blocked, redirected or interrupted either by security software, new entries in the hosts file or any other third party software.
Solution to Error 3194 Update or Restore iPhone, iPod touch or iPad
In order to solve this problem in our iOS devices, we must perform the following steps:
First of all, it is very important to have the latest version of iTunes installed, if you already have iTunes on your computer can check for updates as follows:
Mac: Choose iTunes> Check for Updates
Windows: Choose Help> Check for Updates
Certain software applications may modify your hosts file, which can prevent your computer from accessing the update server.
Note: If an application has modified the hosts file on your computer, you probably have to uninstall the application before editing the hosts file.
If the problem persists and you have some mechanism of TCP / IP filtering, firewall or security software installed on your computer, you must properly configure your software or uninstall it temporarily.
Some third-party routers may have settings or network security that come from factory and blocking access to the update server.
If this is your case, just have to disconnect the router and connect directly to the network access provider Internet.
You may have to restart your computer and modem before attempting the restore.
If these steps do not have helped solve the problem it is advisable to restore from another computer that you know has worked well with other devices.