Unable to change wifi name

When I go into edit mode for wifi, everything is grayed out. Why is this? This is one of the most basic features of a router. Even when I use the app to do it, it allows me to change it...but it NEVER actually changes it on the network. The network still transmits the old name. This is a HUGE deal breaker for me and if there is no option for this...I'll be returning it and going back to my Orbi. Not sure why xfinity always goes against industry standards. One of the worst companies of all time.