Problem Gaming With Net Gear WGT624 v3 Wireless Router

Hello,

Sometimes when I try to play games via Steam, my entire wireless network goes down. The router I'm using is a Net Gear WGT624 v3 wireless router. This only happens with a couple of my games, but it's very annoying because it often times prevents me from playing certain games and I have to power cycle the router to restore the internet. Any ideas on how to fix this?

Thanks.