I successfully changed my default SSID & Password; however, the original SSID and password still show up and also work.
@LisaD wrote: I successfully changed my default SSID & Password; however, the original SSID and password still show up and also work.
You did not say if on the router or on extenders.
if you changed the routers ssid it will broadcast only the change.
you may have to turn the router on and off and then see if it still occurs.