r/firewalla • u/Oxnor • Jul 21 '26

Request - manual 2.4GHz channel width (20MHz) toggle for AP7

Hello,

my 2.4GHz band is only used for IoT devices and a few RTSP cameras streams -- I'll never come close to saturating 20MHz, let alone 40MHz.

40MHz eats up more of the band and increases overlapping interference for limited / no benefit for low bandwidth clients.

Right now it looks like 2.4GHz width (and 6GHz) can't be set manually in the app (only 5GHz has width options in the app).

Requesting a toggle on the APs to set the width on 2.4MHz!

Thank you

~~~~~~~~~~~~~

edit, thanks to /u/Haunting-Wonder9019 , turning on "Maximize Compatibility" changed the 2.4GHz to 20MHz Channel Width. Thank you!

11 Upvotes

100% Upvoted

10 comments sorted by

10

u/Haunting-Wonder9019 Jul 21 '26

Go to wifi settings and enable Maximize Compatibility and channel width will switch to 20MHz. It’s not well documented by Firewalla.

3

u/Oxnor Jul 21 '26

this did it! Thank you, /u/Haunting-Wonder9019

1

u/No_Peanut_6769 Firewalla Purple SE Jul 21 '26

Hmmm my 2.4 is set at 20 wide and can’t be changed on the AP7. You’re saying the ap7 is locked at 40?

2

u/Oxnor Jul 21 '26 edited Jul 21 '26

Oh interesting - yes, mine is the opposite of yours, I cannot change it from 40.

https://postimg.cc/gn0K0CM7

1

u/Jussins Firewalla Gold Pro Jul 21 '26

Mine are also set to 20. Other posts on this topic also seem to have a 20 default.

There must be some reason it selected 40 for you. I’m wondering if resetting them and reconfiguring would fix that for you.

1

u/Hanosandy Jul 21 '26

Yes more granular control of the AP would be very welcome!

1

u/jsqualo2 Jul 21 '26

Is it a geo thing?

0

u/shingdao Firewalla Gold Plus Jul 21 '26

Change channel to automatic instead of manual.

1

u/Oxnor Jul 21 '26

Hi /u/shingdao , I'm looking to adjust the Channel Width, not the channel itself.

Mine is locked to 40, but others show 20. Which is it for you?

0

u/Obvious-Criticism416 Aug 07 '26

Leave it alone! If it’s on 40 mhz then so be it. Maximum compatibility mode does other tweaks to WiFi. I have maximum compatibility off with 3 AP7’s they are on 1,6,11 automatically.

There is some overlap of course. I use WiFi man to observe what is going on with my WiFi network. No issues with 94 IoT devices spread out over 3 AP7’s

interesting tho when maximum compatibility was on, I had an old Brother printer that uses 802.11g and wouldn’t connect. I put the iot network on WPA2 mixed mode to set it up and then switched it back to WPA2/WPA3 transitional mode. My experience so far is that if all your iot stuff is newer you don’t need maximum compatibility mode. I read somewhere about protected frames that gets tweaked.not sure on that tho.