802.11n/ac/ax mode

Software SW help
1

Hi,

I’ve configured the Wi-Fi in my office, but unfortunately, my colleagues are complaining about issues with their smartphones. Essentially, they say that when they arrive at the office, their devices connect to Wi-Fi, but after a while, they have to disconnect from Wi-Fi and use their phone’s 4G data network because the Wi-Fi doesn’t work, even though they are still connected. I’ve tried everything. If I use the official Turris driver, randomly after a while, one or both of the Wi-Fi interfaces self-deactivate and turn gray, so I’ve used alternative drivers. With the alternative drivers, the smartphone clients don’t work properly.

The 802.11n/ac/ax mode has always been set to:

802.11ac - 80 MHz wide channel

I thought there might be an interference problem, so I restored the original drivers and reset the Wi-Fi once again. However, I’m not entirely clear on what I should choose among these values:

802.11n - 20 MHz wide channel
802.11n - 40 MHz wide channel
802.11ac - 20 MHz wide channel
802.11ac - 40 MHz wide channel
802.11ac - 80 MHz wide channel

The Turris is up to date with the latest software releases:

reForis version: 1.4.1
Turris OS version: 6.4.4
Turris OS branch: HBS
Kernel version: 5.15.135

Thank you

2

Ac 20 MHz should be the most compatible.

3

Gennerally phone will disconnect you if your internet is not working.
There could be other problems - channel number is as important as channel width.

Can you try installing WiFiAnalyzer package to your phone and run it?
It should help explaining what’s wrong.

4

Thank you all for the answers. I’ll try the 20 MHZ and also to install WiFiAnalyzer.

5

If they are permanently disconnecting, I think it is due to 802.11w. When you look in LuCI into System Log, you will probably see many messages containig AP-STA-DISCONNECTED

If they are connected, but have no internet, the reason could be in their phones. I myself have noticed such behaviour on my phone (Android) last week. Reset of network setting (wifi, data, bluetooth) in the phone helped. I suspect number of saved wifi networks was causing that. There was only 29 networks saved but, who knows… Or, maybe, some update by Google.