Having some wired networking troubles

[Cook1]

I have 3 PC's, however I can only get an internet connection on one of them. I have tried two different routers, and a switch and this still happens.

I have tried power cycling my modem, reseting the routers back to factory default settings. I have also tried unplugging my modem for 1 minute or so, while keeping all three PC's wired into the router(s) and then plugging the modem back in. I have tried this the opposite way as well, while keeping the modem on I have power cycled the router/switch while keeping all three PC's plugged in.

So three different devices and I can only get a connection on one PC through all of them.

I have Mediacom cable.

Any thoughts?

 

[SinxarKnights]

Can the PCs see each other on the network?

If not, if possible try the cable to the PC that works with the others ones to rule out the cables.

 

[VirtualLarry]

How are you connecting the PCs and the modem? What you describe, would happen if you plugged all of the PCs, AND the modem, into the LAN switch ports on the router.

You need to make sure that the modem, is plugged into the WAN port, or possibly just labeled "internet".

 

[JackMDS]

First step find out what form of authentication your ISP is using.
How to Fix Cable/DSL Internet authentication (password) - http://www.ezlan.net/broadband.html

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