Is there a way to set up a separate 2.4-GHz network with my XB8 Gateway?

Thank you for the reply. The link you provided doesn't really have enough information to explain how to do this. There are about a dozen channels and two different frequencies each to choose from for 2.4 and 5 GHz. Does it matter which I pick if I turn off automatic band steering? If I do this, how will the two different SSIDs appear initially? Will they each have the same SSID and password to begin with? I fear messing up the connection and being unable to connect to xfinity at all if I don't do this correctly.

@user_kzqy0h These are all great questions and I want you to ask as many as you need :). Instead of trying to adjust the channels on each WiFi band, we want to edit the name of the wireless networks so you can distinguish them from each other while searching for a specific network to connect to. For example, you could rename the 2.4 GHz network "wifi2" and rename the 5 GHz network "wifi5" and keep the passwords the same so you don't have to remember more than one. What are your thoughts?

Sometimes you can avoid the hassle of splitting your wireless bands by changing your security mode from WPA3 to WPA2. WPA3 is newer technology and not all devices are compatible with that security mode. You can find instructions here to change your security mode. What security mode is your modem currently set up with? 

My security mode is WPA3. The issue I am trying to fix is enabling my U by Moen shower controller to connect to wifi so it can get a long overdue software update. The Moen tech support people told me the controller needs to connect to a 2.4-GHz signal. I could not connect it to my existing xfinity network. It is the only wireless device I have that has this problem. I suspect Moen's technology is dated, but replacing the shower controller is not an option.

Splitting into two bands, one 2.4-GHz, the other 5 GHz should provide a way out.

Since you are using an XB8 modem, the easiest way to do this is to disable the band steering capability inherent on all Xfinity Advanced Wireless Gateways: 

From the Xfinity App- 

Click on Wi-Fi

Wi-Fi Details

Edit Wi-Fi Settings

Activate option for "Split Bands"

There is no option on the app to split the bands.  What am i missing?

@user_63bf94​ 

when I first signed up with Xfinity I  was given a XB7. that worked well with both 2.4 Ghz and 5 Ghz. Then that modem had a problem they sent me an XB8. Which seems to have problem with older devices and irs not compatible with 2.4Ghz. I must have called and chst with 20 people from all if their Support Team . Finally one of them said that XB8 is designed to work with 5G and Up.Apparantly there is 6Ghz and up. I had never heard if it. In any event O switched to another XB7 made by Arris computer. and it now connects to 2.4GHz devices. Make sure you ask for XB7 made by Arris as they have two different vendors. 

The problem is most older devices be ut IPad Anderoid Security cameras,  Smart gadget around home are on 2.4Ghz and Xfinity  newr XB8 doesn't support it.

They tell you about splitting the signal etc.and it never worked for Mr.

Good luck 

Hi @user_63bf94 Have you had a chance to check out my colleagues recommendation above from XfinityEmilyB for the security settings?