My Purpleair II began to skip reporting data more frequently for the latest few months.
How frequently? Six or more times a day with gaps spanning five minutes or, more often, twenty minutes long. Gaps happen on both channels at the same time.
The first possible cause I was thinking of was WiFi service outage. But I checked and all appears to be ok. I experience disconnections from time to time but with weeks in between. Not hours.
What else could contribute to it?