Anyone know how my wireless network was hacked

[Ron_mesnard]

I was having trouble with a hacker breaking into my wireless network. I finally went to wired but I am still uneasy as to how someone could hack into a WPA2 network with broadcast off, the name, and password were maxed out and completely random. That couldn't be cracked in a year by bruit force. I did learn about WPA2 Hole 196. Still, that would require an agent on one of my computers. I run a bevy of scanners such as malwarebytes,rooter, and several others at least every other month and everything has been clean for about a year. I am just reluctant to write this one off without asking around.

Thanks!