I have a 3-story building with DSL on the first floor. I want to hardwire an ethernet cable to the third floor because wireless does not reach (we tried boosters). I was thinking DSL modem to a 4-port router. Then one ethernet cable to 3rd floor (PC) then one ethernet cable to 1st floor (Mac). 1st Floor has an Apple Airport Express that ethernet cable goes into for wireless network. 3rd floor has another router (also wireless) so that they can have both a wirless network and cable (which is desired). Is there any problems with two routers wired like this? Is this the best way to do this? I really want the third floor to have a hirewire to have the most flexiblity. Any help would be greatly appreciated.

That setup should work fine. Just go from the router on the 1st floor to the wan port of the router on the 3rd floor.

The below diagram gives you the recommended router to router config. http://kbserver.netgear.com/kb_web_files/N101236.asp Understand you need to have some security concerns. 1. going to allow anyone in the neighborhood to attach wirelessly? 2. all pcs will be in the same ip subnet Recommendation is do ip address reservations in the router so only the matching pcs mac address can go thru the router. This also will allow for static ip assignments using dhcp from the router. I would also recommend loading Zonealarm on the pcs and then configuring them not to trust the other ip addresses so there is not chance of someone in the apt complex from getting to some other apts pcs/mac Give a person a fish, they eat for a day. Suggest they internet search and they learn a skill for a lifetime.

additional recommendation: on small networks have the minimum number of routers you can. Each router adds complexity. You've got one already. You should have another one for the Mac's (I assume? - Mac experts out there...?) But the wireless device for the PCs need only be an access point. That's all those 3rd floor PC's are doing - accessing a wired LAN and router. They are not needing routing to another network. Access Points are cheaper and much simpler.

actually, access points are more expensive than wireless routers. no extra router required for the mac or airport Give a person a fish you feed them for a day. Ask a person to internet search and they learn a skill for a lifetime.

Thanks guys for all the input. I'm hooking it up tonight and I will let you know how it goes.

UPDATE: I ran out of time last night, but this is the hook-up so far. Modem to router (Linksys Model No. WRT54G, 2.4 GHz 802.11g Wireless-G Broadband Router). Then one ethernet to 3rd floor, and a second to an Apple Airport Express for the 1st floor. I changed the router name and password, but no security. Modem is DCHP. Everything works. Firehawk335 suggested I connect into the WAN port of the second router (note, same Linksys model, was planning on using it as a wireless station for the 3rd floor), however there is no WAN port on the Linksys router. My friend, who bought the equpiment at a local computer store, said the sales person noted two routers would not work together and he should buy a switch which has an uplink port. So currently, I have one opened router working and another router and a switch in sealed boxes. Not sure how to proceed. One last thought. I could put the modem and wireless Linksys router on the 3rd floor and run an ethernet cable down to the 1st floor to the Airport. The wire is already there. Security is also a concern. I know I can turn on 128-bit encryption on the Airport. But what if encryption is turned on the router? Will it see the Airport? Thanks in advance.