At the faire I would have had it switch to wifi hotspot and at home it would have gone back to connecting to my home wifi, so it was more than on/off (if that's a clue)
I might try upgrading that but it'd be another band-aid. This problem has been popping up for years now and, like with me, the last time "it just went away" and was no longer pursued but it keeps re-occurring. That's the part that makes it frustrating.