I'm trying to connect my device to my home Wi-Fi using its app, but I run into a problem since my phone automatically connects to the 5 GHz band, while the device I'm trying to set up only supports the 2.4 GHz band. I looked through my Vodafone router settings, but I couldn't find an option to force the Wi-Fi to only use 2.4 GHz. Can anyone suggest how I can ensure my phone uses the 2.4 GHz band, or share any other methods for connecting the device? A step-by-step guide would be especially helpful!
5 Answers
Typically, it shouldn't be an issue if your phone and device are on different bands because they communicate through the router. However, if client isolation is enabled, it won't work even on the same band. If your router doesn't have client isolation, they should be able to connect just fine regardless of the band they're on.
To help you out better, we need the exact model of your Vodafone modem/router. It sounds like you could have a unified network name for both bands, which can make it tricky. You should check the available networks and see if you can find a separate SSID to connect your phone to the 2.4 GHz band and then follow your device's setup instructions.
There are a few solutions here. First, let us know your router model so we can provide specific guidance on separating the bands. If separating isn't possible, you may need a new router or something that can manage band separation. Most routers do combine the bands, so your device should generally be able to connect to whichever band is best.
Exactly! Most newer Vodafone routers combine the bands to simplify the connection. If you can't separate them, see if your device has a way to connect to the network. Let us know if you need further help!
One option you could try is setting up a hotspot on your phone that only broadcasts on the 2.4 GHz band. If your router supports 2.4 GHz, your device should connect as soon as you switch off your hotspot.
Just to clarify, does the app use your phone to connect the device to Wi-Fi? Generally, if your router has a single SSID for both bands, your device should connect to the 2.4 GHz band even if your phone is on the 5 GHz band. It's possible your router has a setting for dedicated SSIDs for each band, so it’s worth checking that too.

I looked into it, and since you mentioned Vodafone, it seems like you might have a newer model where separating the bands isn't an option. For your reference:
- Vodafone Connect Router (THG3000) – can separate bands.
- Vodafone WiFi Hub (Sercomm / Arris) – full control.
- Vodafone VOX 3 – varies by firmware.
- Vodafone Power Hub (Wi-Fi 6) – limited options.
- Vodafone Ultra Hub (Wi-Fi 6E) – bands combined.
- Vodafone Ultra Hub 7 (Wi-Fi 7) – no separation.