Users were getting Error 3194 while they were upgrading their iPhone 4, 3GS, iPod touch 4G, 3G or iPad to stock or custom iOS 4.3.3 firmware fortunately iH8snow has resolved the issue.
To resolve Error 3194 follow these steps:
1. In the fiirst step download TinyUmbrella and launch it.
2. Click on the Advanced tab.
3. Now Uncheck “Set Hosts to Cydia on Exit”.
4. In this step Click on “Apply Changes” and then simply reboot your computer or Mac. Done 🙂
Now you can upgrade to iOS 4.3.3.