If you’re having trouble figuring out the whole hosts file situation, click here for a walkthrough on the process, demonstrating how to make changes to hosts and how to make those changes take effect if they are not instantly recognized by the OS.If you still encounter the error, or you find another i Tunes error, go back into the hosts file and place # (pound sign) in front of the IP addresses in question, thereby preventing their association.It is also worth mentioning that if you do not have SHSH2 blobs for i OS 11.1.2, you will not be able to use someone else’s, as these blobs are specific to each device.If you run into Error 3194 within i Tunes when you are trying to restore your i Phone, i Pad, or i Pod touch, you can fix it by temporarily blocking Apple’s firmware signing services.
It should be noted, however, that this will only work while Apple is signing i OS 11.2.1 (or a newer version that has a SEP compatible with i OS 11.1.2).
In that case, no amount of tweaking hosts or adjusting IP’s is going to make a difference to restore to older IPSW, and thus you would have to either keep the current i OS version or opt to upgrade to a newer version to escape the 3194 error.
For those who want to know, the IP address being temporarily used and re-associating gs.with is saurik’s (of Cydia fame) signing server.
This means that when future versions of i OS are released, you may not be able to use this method to restore back to i OS 11.1.2.
This method also requires that you have valid SHSH2 blobs saved for i OS 11.1.2.
Error 3194 seems to usually be triggered when unsigned or expired firmware is used, often during an i OS downgrade or upgrade, or even during some restores.