SHSH blobs are automatically saved on Cydia's servers on jailbroken devices. You can only manually save the SHSH blobs that are currently being signed. I.E. you can only manually save iOS 6.1.2 SHSH blobs now, nothing below that if you haven't saved them already
3194 is a host issue. End any iTunes processes, edit your Host file and remove any gs.apple.com lines, delete the Host.Umbrella file, and flush your DNS/cache and try again.