Is there still no way to split the 2.4 and 5ghz bands?

hirky45 Thank you so much for reaching out for help with your WIFI channels. I have a printer that only works on the 2.4 GHz so I understand the need to make sure you are connecting to the correct band. Disabling one of the signals is not recommended.  If you have a combined WIFI network like most of our customers you can split the channels again but changing their names. This way the 5.0 devices can still connect and you can make sure the 2.4 can be located by name. In your Xfinity app if you press the WIFI tab and then WIFI Details you will get a pop-up with Edit WIFI Setting at the bottom.  At the very bottom, you have the split WIFI bands option. Once toggled on you will be able to edit each channels name to better identify each one. If you still can not find the correct network on the device in question you may need to change its location or the location of the modem. The wave sizes for the 5.0 signal and the 2.4 are different to help ensure better coverage but that means you can have gaps if only using one of the two.