I agree not a Blynk issue, assuming it’s not some sort of flood issue. Although is there a way to check if I get disconnected because of a flood issue? (sometimes my sloppy code will force one).
I’m not using the external antenna, I did a range test and they are pretty good.
I only have 1 esp on battery power and that goes to sleep. I have a sneaky feeling that particular one causes issues crashing the rest of them, it has in the past when the battery died. (I think). Maybe my router doesn’t like being connected/disconnected all the time.
What were you doing trying to have a conversation in a nightclub, I also have a distant memory of reaching for the lasers.