Hi there GMS,
I'll try to help but I need a little more info. What do you mean by modem? As in internal or external? If its external i'm guessing you have an ADSL connection? Also is it a modem or router? If it is external are you using a USB or Ethernet connection to link it to the computer?
Once you post this info I (and quite a few other members I expect) should be able to answer your question!
