AirGradient Forum

AirGradient Open Air cannot find existing Wifi network

Hello,

last week, one of my AirGradient Open Air suddenly has lost its connection to the local Wifi network. When I connect to it’s Wifi hotspot and go to the Wifi manager, other Wifi networks appear, but no longer the local, strongest Wifi network, whereas my smartphone shows it.

Today, I tried to connect another Open Air to another local Wifi network: Same problem, the local Wifi network does not appear in Wifi manager.

Is there a sudden bug or can other users confirm this?

Hi @lqms, thank you for reporting the issue. Could you please provide more information about the firmware version? Also, did you manage to find the Wi-Fi SSID after several refreshes in the Wi-Fi manager?

I will try to reproduce the issue and discuss it with our firmware engineers. Thank you!

Thank you Tai! In the meantime, I found out that the concerned Wifi networks lost their 2,4 GHz frequency and only delivered 5 GHz, but AirGradient Open Air only supports 2,4 GHz. So I will investigate why 2,4 GHz is no more offered there.

Hi @lqms, thank you for your reply! Could you confirm that you mean your Wi-Fi access point stopped broadcasting 2.4GHz Wi-Fi, and that could be the cause why the AirGradient monitors did not detect the Wi-Fi? Thank you!

Yes! For the first of the two concerned Wifi networks, 2.4 GHz had changed its SSID and is now different from 5 GHz. After reconnecting AirGradient Open Air to the new 2.4 GHz SSID, is continued working. For the second Wifi network, I’m still checking but also 2.4 GHz network is no more offered or changed its SSID. So no issue at AirGradient’s side.

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@lqms Thanks a lot for the update. Please feel free to let me know if you find any issues. Thanks again!