AlexiDexi

Hello, i have a problem. I would like to play Hexxit with more then 1 GB Ram but this only goes with a 64 bit Version of Java, I installed the latest Version of Java "version 8 Update 73 - 64 bit". But now if I want to launch the Technik Launcher and want to Login there comes a error: "An error occured while attempting to reach authserver.mojang.com". This error only comes if I want to lauch Minecraft with the 64 bit version but if i want to launch it with the 32 bit version. With the 32 bit version of Java everything works fine. So is there anyone who can help me to fix this problem, please? Thanks