I had an xfinity modem/router combo and there is a wired access point also installed in my house. I replaced the old equipment with a new stand alone modem and stand alone router (Both xfinity approved). I renamed the SSID for the router and it is visible and I can connect to it wirelessly. But my old network is also visible and I can also connect to it as well. I ran a speed test on both networks and the "old" one is significantly faster. That's not what I was hoping for when I changed the modem/router. How can the "old" network still be there if the old modem is unplugged and no longer active? Any help would be greatly appreciated.