Unable to connect to internet thru network

July 15, 2011 at 08:48:09
Specs: Windows XP, Intel/2 GiG
I have set up a network in my home with the three computers. I have two of the same computer which I purchased and when both are turned on only one accesses the internet. I have updated the drivers, the internet connection is a Motorola Wires Router and there is a switch installed in the network.

Any help?

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July 15, 2011 at 09:20:53
Does the wireless card see the router?

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July 16, 2011 at 02:55:40
"there is a switch installed in the network"

Why a switch? You don't need a switch to have 2 or 3 computers connected to a router all at the same time. It's probably the switch that's causing the problem.
Take it off the network and see if it makes any difference.

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July 17, 2011 at 10:29:21
There is a switch because I have a other devices which access the net from that area; however I put all the computers on the switch and no difference. All the computers are hard wired into the same switch.

I believe that the issue revolves around the two refurbished Lenovo computers since they both have the issue. When each are connected one will not have internet access. Turn the computer with access off and the other gets access

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July 17, 2011 at 19:50:05
Your Internet Service Provider likely gives you 1 IP address. It's passed to your modem which then sounds like you have plugged into a switch. If that's the case, it sounds like the computers are fighting over that 1 IP address, so only one can connect at a time. What you need to do is instead plug a router into the modem and remove the switch. With the DHCP server option enabled on the router, it will be able to assign network IP addresses to the 3 computers, and all will be able to simultaneously use the 1 external IP address given to you by your ISP.

A router performs like a switch but has many more features. Even wireless routers have ports on the back so you can have some computers on your network connect wired while others are wireless. The switch doesn't seem at all necessary in this setup.

"When each are connected one will not have internet access. Turn the computer with access off and the other gets access." The computer turned off "leaves the fight" so the computer still on can easily grab your 1 external IP address. If I'm mistaken in your network design, please thoroughly describe it.

Apologies if I don't respond to your reply immediately. I don't check this site daily, but you're welcome to PM me as a reminder.

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July 19, 2011 at 09:01:24
The ISP set up a static IP address and the router had only Five addresses to give out. I also had a credit card machine, two networked printers and three computers, as well as my cellphone all on the network.

Resolution was to use a dynamic IP address and open up the connections/ports. Works fine now and I am moving to fiber optics with a static IP address when I install video surveillance.

This solution is posted for all others using AT&T DSL service and a MOTOROLA DSL ROUTER

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