I currently have a wireless router at the broadband cable entrance point downstairs, serving 3 machines, and a wire going upstairs (Mixed win xp and 98). I need to provide wired service to about 3 sites upstairs *and* wireless coverage upstairs (too far from the downstairs router). It was suggested that for upstairs I need a wireless access point and a switch. My question is whether I can instead use another wireless router upstairs, with its DHCP service turned off? (For details, it's a d-link di-614 router downstairs).
I've tried this once before, and indeed couldn't make the upstairs machines see each other by TCP/IP, and had to add NETBEUI just so they could share, (which introduced other problems). Is there some understandable reason why you can't hook a router to a router, even disabling all its firewall functions?
Also, should the wireless points be set to the same channel and SSID or different?