Assuming you are running Windows XP, go into Device Manager, expand the listing for network adapters and double click the listing for your network adapter.   On the Advanced tab, select Speed and Duplex, and change the value to "Auto" or "100 Mb Full".

Steve

Thanks for the help Steve, but I've done that and then my Internet does not work

Gayle

After setting the network card to Auto or 100/Full Duplex, are you saying that you cannot connect through the router?  After making the changes, did you reset the broadband modem and the router by shutting down everything, powering up the modem, waiting about 5 minutes, then powering up the router, and finally powering up the computers?  Does device manager show that the network card is operating correctly?  Is the network card getting an IP address from the router?  Please provide as much detail as you can, as it is very difficult to troubleshoot these kinds of problems without actually being there.

Steve

Go to Start > Run > and type cmd then click OK.  Then type ipconfig /all and report back what you find.

Steve

Here is some of what I got

physical address 00-0c-f1-8a-00-4a, IP 68.7.5.57, Gateway 68.7.41, IP routing enabled - yes, WINS Proxy enabled- no

Thanks Gayle

That is correct I can not connect through the router.  I tried what you suggested and it didn't work.  According to the a device manager the nic is working correctly.  I do not know how to tell if the nic is getting the IP address from the router.

Thanks for your help

Gayle

The IP address it is getting - 68.7.5.57 - looks like one you would expect to get when connected directly to the modem.  When connected to the router, you should be getting something in the range 192.168.xxx.xxx.  Got to the command prompt again (Start > Run, type cmd) then type ipconfig /release /renew and report back what IP address you get now.

Steve

I typed in ipconfig/ release and the IP address is 0.0.0.0.  Then I typed in ipconfig/ renew and the IP address is 68.7.5.57.  I was not plugged into the router when I did this.

Gayle

Well, I thought the point was to get this hooked up to the router.  The IP address you are getting is the IP address assigned by your ISP through the modem.  Shut down the modem, shut down the router, and shut down the computer.  Plug the modem into the WAN or Internet port on the router, plug the cable from the network card on the computer into one of the LAN ports on the router, then turn on the modem.  Wait at least 5 minutes before doing anything else.  Next turn on the router and wait one minute.  Next turn on the computer.  Now try the internet connection.  If it doesn't work, do the ipconfig /all and see what IP address you have.  Report back.

Steve

Ok I here is the IP address when I typed in ipconfig/all 192.168.1.100  THis is the IP address when I typed in ipconfig/release 0.0.0.0 and the IP address when i typed in ipconfig/renew 192.168.1.100.  THis time I had everything plugged into the router.  I was unable to get on the internet with the router plugged in.

Sorry that I didn't send the right address in the start

Gayle

You are now getting a proper IP address from the router.  Now you need to check if the router is getting a proper IP address from the broadband modem.  Can any of the other computers connected to the router connect to the internet.  Can you go into your router configuration utility and check the status and see which IP address it is getting from the cable modem?  It should be one that is similar to the one you got before when you connected the computer directly to the router.  Which make and model router do you have?

Steve

None of the computers connected to the router can access the internet.  I have a Linksys cable/dsl 4 port router.  How do I access the configuration utility for the router?

Gayle

To access the web based configuration utility on most linksys routers, open Internet Explorer and type the following address in the Address Bar -  http://192.168.1.1   You might want to read the router manual for further instructions.

Steve