Connecting a router to router

Hello everyone. I have recently encountered a network obstacle that is beyond my experience. I hope that my question is not too complicated and I have made drawings in ms-paint to best describe my network setup and the exact problem.



(old setup)

As you can see, I have 3 televisions and 2 PCs that require a connection. The problem can be immediately classified as not having enough ports in the back of my modem. I have a television and second PC in the back room that I need both functioning simultaneously; however only one wire, so I'm having to switch the ethernet cord from the PC to the television depending on which one I'm using. As you can probably imagine this is a hassle, I want them both working at the same time.

I asked my ISP what to do, and they told me to purchase another router and split the connection again. So I went to wal-mart and purhcased a $99 Linksys Wireless-G Broadband Router, model WRT54GS. I ran the Linksys autoconfiguration setup which guided me through plugging everything in and auto-configured the new network settings for the router and this is the new setup:


(new setup)

The WLAN, Internet, 1, and 2 lights on the Linksys router are blinking, but both TV3 and PC2 are not working! (note: TV3 does get a listing of channels but everything says temporarily unavailable) I have no idea what to do next. I could call my ISP and have them come out and set it up for me, but they charge outrageous fees just to do simple tasks that I could probably manage myself. Is everything hooked up correctly? Is there something I must manually configure in the Linksys configuration settings? Any help would be greatly appreciated, and if there's anything else you need to know just ask.

Thanks,
Jacob.

Welcome to TechSpot!

I can't see your images, but if you have two routers hooked up. One will have DHCP enabled the second one will have DHCP disabled. You would need to add the MAC address from 2 to 1.

Router #1 - DHCP enabled (mac address 00:00:00:00:00) -example
Router #2 - DHCP disabled (mac address 00:00:00:00:01) -example

Router #1 - if you have mac filter or bridge access you need to add Router #2 mac address here. Do the same for Router #1 mac address. So both can communcate with each other.

Note: if Router #1 and Router #2 are the same type of router. Example wireless router. Then you make Router #1 - DHCP enabled and Wireless Enabled. Make Router #2 DHCP disabled but turned on wireless bridge or access point feature also know as AP or WAP.

So Router #1 has DHCP enabled, WAN connected to your modem, uplink port connected to the second Router #2.

You have mentioned the usage of TVs? Are you doing HTPC (Home Theater Personal Computering) this would be use to streaming media over the network on to a media network device connected to the TV. Are you doing that?

tipstir: DHCP must be disabled for my primary router because my ISP does not support it. I will upload the images to another location because they give essential details of my setup.

old setup which demonstrates the problem: http://img409.imageshack.us/img409/9600/currentsetupsk6.jpg

new setup with solution to problem but doesn't work: http://img409.imageshack.us/img409/2047/newsetupkr7.jpg

Also, the routers are different brands - primary is Westell, secondary is Linksys. Primary is wired, secondary is wireless.

As for the TV's, no it's not what you are thinking. My internet service provides both satelite internet and television both through ethernet cables, interchangable.