Im sure im not the only one who thought of this, but today i added ReAuth to Omnifactory because i got tired from having to restart the pack when it lost authentication with the mojang server. I copied the file from my PO3 folder to Omnifactory and that worked like a charm. For those of you who dont have PO3 installed, you can download the file here: http://www.deepcage.com/files/reauth-3.6.0.jar Add it to your Mods folder for Omnifactory and you can re-login when you lose your session with the mojang servers. Hope it helped some of you.