I have two Photons and about 1-2 weeks ago one of them started to do the following: After running flawlessly for some time (breathing cyan) it started blinking cyan and apparently wifi/cloud connection was broken as I could not send REST requests to it. After resetting the Photon it worked fine for…

When you say blinking cyan, do you mean blinking rapidly as during the handshake portion of the cloud connection? This issue may be related to this post and still under investigation afaik. [image] System.sleep not working on Photon as documented-known bug? Troubleshooting …

I think that it’s blinking bit slower than the handshake. Can’t verify atm because both of them are running ok so far after recent reset. Don’t think that System.sleep issue is related because my code on those Photons are pretty elementary (blink and web connected led).

Interesting. So it breathes cyan and eventually starts blinking cyan? Are you on system firmware V0.4.4?

I, and others, have experienced a similar situation @Rubyconna … later posts within threads here and here indicate observations which I believe are identical to yours. (All are running 0.4.4 … this does not resolve the sporadic disconnection issue you highlight). I have not seen any definitive res…

Thank you @ljd2 for pointing me to right threads. Maybe I should have used “flashing cyan” as a search term for better results. @kennethlimcp I’m not sure if I was running latest firmware. I tried to reflash earlier, but I was unable to do so even after reset (+ breathing cyan). For some reason issu…

Just to mention I’ve experienced this issue, too. It’s not the WiFi AP, because when I power cycle the AP, the connection doesn’t restore, but if I reset the Photon, it instantly connects to the cloud again and we’re breathing cyan. Isn’t there some way for a built-in watchdog to take care of this…

Blinking cyan with Photon

Troubleshooting

Rubyconna September 9, 2015, 12:52pm 4

Here’s a video demonstrating the issue:

Topic		Replies	Views
Blinking cyan after several hours of connectivity. Reset corrects issue...temporarily Troubleshooting	12	1111	October 19, 2018
Photon stuck in rapidly blinking cyan WiFi	7	1175	June 3, 2020
Long Term Photon Connection Stability Troubleshooting	222	35033	June 25, 2020
Never Ending Flashing Cyan Troubleshooting	9	3568	February 23, 2017
System.sleep not working on Photon as documented-known bug? Troubleshooting	15	3420	September 9, 2015

Blinking cyan with Photon

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