Calling computer/networking nerds.

[blageo23]

Alright I am having issues with my PS3 Internet. Little info:
Ps3 hardwired
Linksys wireless router
Comcast business class service (static ip)
From modem to router to ps3
Game- call of duty modern warfare (yes the first one)
Go to play online and kicks me off after 15 sec. Saying network timed out.
Ive tried port forwarding but nothing
Anyone have any tricks or any info? I want to get the new cod but it's pointless if I can't play online.