AirGradient Forum

Cannot find access point, trying to reduce tx power but how?

#1

Hi,

I bought a kit of the outdoor sensor (O-1PST) and a few Indoors (I-9PSL). I built the outdoor and 1 indoor and both are having wifi problems, mainly my iPhone or Mac can’t find the SSID for the initial configuration. I used the browser flasher to flash v3.1.13 on both, I view the logs via the browser and see that they both publish the SSID airgradient-XXXXXXX but my phone can’t find it.
I searched online and found this post that says to touch the wifi antenna. I touched it and I do see the wifi but I can’t join it, so I guess I need to lower the TX power.
I found this thread that says to reduce the tx power but where exactly do I add these lines?

Also, am I in the right direction? I couldn’t find on the forums any reference to this issue, but maybe it is a known issue and it is not the tx power?

Any help would be appreciated, thanks!

#2

Pretty unusual. Can you check with your computer or another phone if you see the SSIDs there?

#3

So I tried using 2 iphones and my mac but they couldn’t see the airgradient wifi, BUT I was able to get a hold of an old hp laptop running windows and it was able to connect and configure both sensors.

If anyone encounters the same issue, get a windows laptop!

Thank Achim for the help!

#4

I have the feeling your phones are only looking at the 5GHz band and the AP from the sensor is in the 2.4GHz band. That’s why the old laptop works.