Just commenting here to follow this thread… I also have been intermittently getting device resets similar to what you are describing. The device will continually reset itself right as it is connected to the particle cloud. I know it’s resetting/pseudo resetting as it re-calls the Setup() function… here is a lengthy thread talking through what I was trying to do. Went down a few rabbit holes and still don’t think I know what’s going on. Boron - Seemingly random device reset - How to best capture the reason - #19 by jgskarda
This sounds unusual however, for me, it seemed to never happened when plugged into USB when monitoring Serial log and only happened when connected to LiPo battery. Secondly, it seems to happen for the first 2-24 hours of a brand new Particle Boron, almost as if there was a “burn in period”, maybe there is some sort of handshake that must happen with the cell tower before it can establish a connection without resetting. Not really sure. This also did not happen on every single Boron I commissioned but rather maybe 2 out of 10. After a day or two though, then it seems it never happens again. I hope to fully document/record/capture all the information as I commission the next set of Boron’s in hopes of getting to the bottom of it. Should be next week sometime when the next batch arrives.