Today I redeployed a Photon I’d had offline since the end of March. It was reconnecting to the same WiFi AP as before. Same hardware, unchanged SSID, unchanged key.
Just constant flashing green LED.
So I put it into listening mode and tried to connect it using the Particle app.
I was able to connect to the Photon and get it to show nearby APs.
It showed all of them apart from the AP it used to connect to.
However I know the AP was available and working because I was using it on my iPhone.
I was able to access the wider internet through that AP from my phone.
So then I tried to manually configure the AP - no dice.
Any ideas what was going on? It’s still going on, but I just got so disheartened I gave up for the day.