I am having trouble connecting my Xbox 360 to my internet. My ISP is Leru, which is not supported by Microsoft, but apparently can still be used to play on Xbox Live. I have a Comtrend ADSL2+ CT-5621T modem and a Linksys WRT54GS router. I am trying to connect my Xbox with an ethernet cord. When I try to connect to my internet, I get mixed error messages, telling me that my DNS numbers are wrong, my Xbox is not getting the IP address from my modem, and that my modem might be filtering my Xbox's MAC address. Any information or ideas would be greatly appreciated.