I have a Netgear78 Router at home, an iMac, an iPhone11, iPadPro11. NetgearGenie shows me there are two wifi networks for 5G and 2.4G as I have set up, BUT there is an additional network, named ATTuMysE6a. I don't use ATT anymore, I use Verizon. Should I delete this network? I don't use ATT?