Only after ~1,5 years in operation, the Airlink showed indications to loose the wifi connection. I enabled more logging (via API) and saw the power remained stable and it was only the wifi connection that was occasionally lost but recovered at some point.
Some time later, the temperature and humidity readings were gone but the PM data was reported OK. Even some time later, the PM readings are gone. The unit is now only connected to the network but provides no more data.
I measured the power supply, cleaned the module and PCB but no success.
Is there anything I can do more to make it work again?
