Posts: 90
Joined: Fri Aug 03, 2018 12:39 pm

Force 2.4ghz

Tue Oct 09, 2018 7:46 am

I've got a 3B+ which I'm using connected to a BTWholeHome mesh system. This supports 2.5ghz and 5ghz but it only has one SSID, unlike my router which has one for 2.4 and one for 5. So I can't just select the SSID I want.

The Pi is quite far away and through an internal wall but it connects at 5ghz. It's running a security camera and the streaming is really flaky. I've got a Pi Zero which is about the same distance away with an external wall and an internal wall in the way but it streams really well.

The 3B+ is seeing -63dBm
The Zero is seeing -68dBm

You'd think the 3B+ would perform better???

I'm wondering if I'd be better off forcing the 3B+ to use 2.4ghz but I can't find a way to do this.

Would I see a decent improvement by switching to a USB wifi adapter?


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Posts: 4988
Joined: Sun Dec 28, 2014 3:02 pm
Location: East Yorkshire

Re: Force 2.4ghz

Tue Oct 09, 2018 8:00 am

Your router is selecting the best connection based on an algorithm it uses, so it'll switch you to 2.4GHz if it thinks it will be a better connection. This is .ac at work, on some router/AP etc you can select trigger points for changing over etc.
Have a look at you manual. Look under Band Steering.
You can often turn it off, but I wouldn't as then you have to manually select the better band.

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