I’ve encountered some strange issues regarding the wifi-strength of the photon.
For the last few weeks I have been using photons in my garden. Everything worked fine. It almost never had problems connecting to the cloud. It did it within a few seconds, after waking up from deep-sleep mode. Also, the wifi range was easily over 17 meters, with only glass in between.
Problems started when I updated my code and added some new things to my payload. A few days after that at 02/27 trouble started and they had problems connecting to the cloud to the extent that they didn’t connect at all, after waking up from deep-sleep mode.
During the amazon server problems, I didn’t use my devices, so I can’t tell whether the real bad problems started there.
However, Friday I wanted to use them again and ran into some real odd issues.
The photons now have big trouble connecting to the cloud. Their wifi range sometimes shrunk down to only 5 meters within direct line of sight. I have been trying to connect the photons from the same spots from the weeks earlier and it never succeeded.
Using the WiFi.RSSI() function I have measured up to 20dB difference in the strength of two different photons at the same spot.
I have tested several photons with varying code. The only thing that seems to help a little bit is using the 0.6.0 firmware instead of the 0.6.1.
I have also tried to restart the router (fritz!Box7490), it didn’t help at all.
Do you have any solution how to fix this problem and what might have caused it?