I recently purchased the faster router for my how setup. That means that I now have everything connected to my new, faster, WiFi from the new router, plus I have the old router sitting around. Can I connect the old router to make a second, independent, WiFi network with Internet access? This would allow me to have a second WiFi connection for my guests without allowing them to see my main network and any of the devices on my home network (such as my backup drives).
If this can be done, how? Do I have to use the coax connector (which means adding a splitter before one of my cable boxes) or can I use one of the Ethernet ports on the router?