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How to connect 2 routers to 1 modem

February 22, 2009 at 08:01:13
Specs: Windows XP

I have one Linksys WRT54G WIFI router
connected to one cable modem. I am getting a
low signal on my second floor when I use my
WIFI notebook. I have another Linksys WRT54G
WIFI router and I would like to know how I
can connect it to the same modem (physical
and configuration) in order to improve my
WIFI signal in the second floor. Thanks.

See More: How to connect 2 routers to 1 modem

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#1
February 22, 2009 at 12:31:49

If you want the upstairs WRT54G to be using the same WiFi channel and on the same network as the downstairs WRT54G, it won't work. You will be creating 2 WiFi access points which will be operating independently but trying to do the same thing. They will conflict with each other. What you are describing is 'extending' the range of your home WiFi network and you need to do that with a "range extender" which is a WiFi repeater in conjunction with a protocol called Wireless Distribution System (WDS) which will sync the 2 wireless access points and allow them to work together instead of in conflict.

You could use the upstairs WRT54G to set up a 2nd network and wireless access point by simply connecting the WAN port of the upstairs WRT54G to one of the LAN ports on the downstairs WRT54G and use a different network or subnet and broadcast the WiFi on another channel. Computers in the house could access the Internet from which ever access point provided the best signal, but the computers on the different networks couldn't communicate with each other unless the networks were bridged.

Cable modems typically only allow a single connection, you probably can't connect both routers to the one modem at the same time.


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#2
February 22, 2009 at 12:49:32

Option 1: buy two isp provided ips and put a hub between modem and both routers wan ports.

* this doesn't solve your distance/signal issue unless you wire to the upstairs and place the 2nd router there.

Option 2: cable to upstairs as crossover. Connect from 1st router lan port to 2nd router lan port. configure 2nd router for no dhcp and give it a static ip for management. It is now a wireless access point

Option 3: flash the linksys's to tomatoe or other WDS system like DD-WRT [google them for more info]


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#3
February 23, 2009 at 04:38:19

Thanks for your reply. I need the second
router as an extension connected with an
ethernet cable to the first one in order to
improve internet signal in second floor. It's
not for networking but only for internet
access. Is it possible to connect the two
routers and how I can access it and configure
it. The first one connected to my modem and
desktop is accessed through 192.168.1.1.
Thanks.

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Related Solutions

#4
February 23, 2009 at 14:55:45


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#5
February 24, 2009 at 02:45:00

Thanks for the diagram. I found it also in Linksys website and it's called "a cascade routers connection".

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