time capsule cannot connect to internet
Hi,
I had just purchase the time capusle(the model they have in stores now) and am trying to use my time capsule as my wifi router but failed.
Here's how it works now, internet-->modem--(LAN)-->Buffalo routerWZR-HP-G302H--(LAN)-->Time Capsule
and how I want it to work internet-->modem--(LAN)-->Time Capsule
When I connect the time capsule directly to the modem, and had setup the timecapsule, the airport utility shows that I am not connected to the internet so I checked from my system preference-->network, it says I am connected to wifi. The Airport Utility still shows that I am not connected to internet, orange/amber light for internet and flashing orange/amber light for time capsule.
At first, airport utility says time capsule has internet connection problem and DNS server and the other problem that I cannot remember, but in the end I fix the other two problem and now there's only one left, that is the internet connection. I am not able to connect to the internet no matter how many time I use the system preference-->network and use "Assist Me" to fix the internet connection, which usually works but not this time. I also try it on my ipods, iphones and ipads and they all cannot connect to the internet through wifi but when I connect the LAN to my computer it works perfectly.
Can anyone help me with this probelm? Why can't it connect to the internet?
Thanks in advance
MacBook Pro, OS X Mountain Lion (10.8.2), TIme Capsule.