Bought new router, Experiencing higher ping.

I posted a thread a few weeks back about slow internet. That has been fixed. After upgrading our router to AT&T's Netgear Modem/Wireless router combo I have a new issue. My entire household is experiencing higher ping. Our speed is as it should be. The Speedtest.net server I typically use located in Toledo, Ohio went from 35-40ms to 90-100. If I play Counter Strike Source, servers I used to get 40ms on I now get 100 constant. You catch my drift. It never goes down.

THINGS THAT ARE RULED OUT:

- The fact my personal desktop is running on a wireless connection. Its a problem even for the family computer which is where the network is wired to.
- Network usage by other people and downloads. I had everyone in the house shut off their computers and I still experienced the ping issues.
- The router firmware. It has an automatic updates, it found no updates and I even searched for newer firmware manually and found nothing. I can only assume its the latest firmware.
- I have reset the internet multiple times, reset the router and so on.

Thanks for any and all help.