Wi-Fi problem

I just had to replace a wireless DSL modem due to a lightning strike. The old modem was a westell that I got from AT&T when I signed up for DSL. The new modem is a netgear I got from Best Buy. The new modem is a wireless-N modem. Not sure about the old one but it was probably a wireless-G.
The problem? My Eris finds the Wi-Fi signal and says it is connected to it, but the internet doesn't work. I get a pop up note saying I have no connection....even though the phone says I am connected. I am in the country and have a week signal.....therefor I use the Wi-Fi connection on the phone to surf the web with the Eris.

Any ideas? Is it the wireless-N that is giving me the problem?

Thanks Monty1,

I don't know how to do that yet.....but I am working on it! 

Thanks again....

Monty1,

I meant to let you know that I never could get that wireless-N router working. My laptops had compatibility issues too for some reason. I am on AT&T service so I went back to a modem that was supposed to be FastAccess compatible....and it was. After setup with the AT&T modem.....everything worked fine. Just FYI stuff......
And thanks again for you help with this!

First thing is what is the wireless card in the laptop - brand and model - even if it's the internal one, make and model. Second, what firmware version is on the 655?