If your frontier modem supports 5g band then I guess you have the same wifi name for both the bands and in that case, you need to separate the wifi names.
For that, you need to login into the router settings and disable the Total Wireless Control feature. And in order to login into the router settings, follow these steps:-
- connect your computer with the router’s network
- open your web browser and type this address:- 192.168.254.254
- It will take you to the login screen and then enter the Admin password(you will find this password on the router itself)
- once you are logged in, then go to the wireless settings and disable the total wireless control feature.