I've flashed my Linksys WRT54GL router with the Tomato 1.28 firmware. This has worked fine, and I set its IP address to 192.168.1.2. I already had a wireless router, but the reason I bought this Linksys router was to give my old PC (which had no network card) access to the network, so the router was to act as a bridge between the existing wireless router and the old PC (the old PC does have a NIC with ethernet port).
Anyway, I needed to set the router up in 'wireless ethernet bridge' mode, and set the SSID and security settings to match those of the existing router, which I have done. It worked fine and the PC had internet access... but then I decided to change the Tomato router's IP to 192.168.1.1 - this was a bit of a mistake. :-)
Because the existing wireless router already had an IP of 192.168.1.1, I now get its web interface when I access that IP in the web browser instead of the Tomato interface.
Can anyone think of a way I can get back into the Tomato interface to set its IP back to 192.168.1.2? Presumably once they have different IPs, I will again be able to access the web interface of both routers on the two different IP addresses.