So by reading around, ive noticed there are a few people having problems with game guard. Having played a game for years that was riddled with gameguard problems, there was one workaround that solved 90% of my problems.
First, go here and download the file. It says windows 7 fix, but the file you download is one ive been using for years to get past gameguard problems.
Download FileTake the gameguard.des file it gives you and replace the .des file in the Aion folder. So that would be C-->Program Files---> NCSoft -->Aion -->bin32
The next step is very important not to f*** up.
In that same folder you should see an Aion.bin file.
Make a copy of it but DO NOT DELETE IT. Leave the copy in the folder. Dont touch it.
Take the orginal Aion.bin file and rename it to Aion.exe.
It should give you a warning about changing file extensions. Just push ok.
Launch the game as an admin from that new Aion.exe you just made. The game will launch straight into the client without the launcher.
Im not guranteeing that this will work for every problem, but it solved about 90% of my problems for a long time.
I copied this from a forum I was reading regarding the gameguard problem. I bear no responsibility weather this work or not so try it at your own risk.