I have 10 Particle M404 devices in our test yard. I noticed that this morning 4 out of the 10 devices had a solid green light and I could not connect to the cloud. We had a large concert across the street last night, and usually my cell phone loses the ability to communicate during a large concert. Could this have anything to do with what I am seeing?
Solid colors should never happen as the device deadlocked with interrupts disabled, which should never happen.
However, the color that is solid usually indicates what the device was doing before it locked up, and green indicates that it lost the cloud connection and probably was trying to reconnect to cellular.