Papi Chulo said:
Is it possible to use the printer / fax through the second router??
If these are those standard routers you buy at Futureshop, most likely:
1) the second router also has a firewall that will prevent "my computer" from seeing anything behind the second router.
2) The cable from the first router to the second router needs to be a X-over cable. Check that both routers show the "link" light up when the cable is plugged in at both ends.
In the setup for the second router, there's usually a tab called "DMZ" that would enable you to set this up along the lines of:
http://blogs.ittoolbox.com/networking/it_guy/archives/linksys-dmz-setup-14185
This permits the firewall in the second router to allow access to the printer from the first router. The second router then essentially becomes the same address as the printer. "My computer" would print to the IP address of the second router.
IMO, it would be easier and cheaper to forget the second router and install a 4/8 port switch instead of a router. The switch requires no special config. Most have auto X-over so you could even use a regular cable instead of an x-over cable.
The other alternative is to plug the x-over cable from the LAN port of the first router into the LAN port of the second router (not the WAN port). Disable DHCP in the second router. This turns the second router into an (expensive) 3 port switch.