No connect with 3com router so what to do - 3Com OfficeConnect Router

A router connects to a modem. It also connects to computers in your building. Which end of this are you having trouble with? You can tell what is connected to your router by the lights on the front of it. There should be a light labelled WAN, modem or Internet. Is it lit up? There should be other lights for the connections to computers. Are they lit up? Is it a wireless router and are you connected to it that way? If so, other questions must be answered. On the internet side, check your modem to see if it has connected to the outside world. Consult the manual to see what the lights indicate. There is a procedure that must be followed to make the connection to your internet service provider, including making arrangements to pay for the service and getting a user name and password. If you want help on that from here, you must provide the name of your service provider and a description of the modem and its lights and tell us what you have done so far. On the computer side, you need cables to connect the computers to the router. The operating system on the computer may make the connection automatically, but quite likely some setup will be necessary. On a Windows computer, you would begin in Start-control panel-networking-Network Setup Wizard.