Hey guys - we’ve been doing some WiFi testing on the photon with the v0.4.8-rc1 tag prior to deployment and we have seen a couple if interesting issues. I wanted to raise them here to see if anyone has experienced the same? Or just to track insight in case this is something to be fixed. The method …

@mhazley , this is great work! I wonder if this other topic is related to the SOS issue, which I believe is related to problem 1 IMO: [image] Listening mode and available memory Firmware I noticed a weird issue when doing a bunch of wifi configuration testing today. My fi…

Interesting - I have scripted the Access Point to go up and down automatically now so I’ll monitor the memory as I run and see if I can get any information.

Do you have SYSTEM_THREAD(ENABLED) in your application? On then will the system be multithreaded.

Indeed we do: SYSTEM_MODE(MANUAL); SYSTEM_THREAD(ENABLED);

Managed to replicate Problem 1 quite quickly with the scripted Access Point (cycling wifi off and on every ~30 secs) and was monitoring the free memory system call. It has disconnected and reconnected 5 times this test and now refuses to connect again - I have stopped the AP from cycling and WiFi i…

Thank you, this is useful info.

Been running this replication a few more times with the Particle Logging enabled at WARN level. I’ve left in my device state and free memory logging from the application thread - distinguishable because it doesnt have a timestamp :smile: Not sure if this actually tells us anything new - memory was …

You guys probably already know this but I am getting the exact same behaviour and stack trace with v0.4.9-rc3 tag. 0001052415:WARN : void Spark_Process_Events() (201):Communication loop error, closing cloud socket 0001052528:ERROR: int determine_connection_address(IPAddress&, uint16_t&, ServerAddre…

Hi @mhazley You mentioned that you don’t see your breakpoint being hit, how are you setting up gdb? Do you see other brackpoints in system firmware being hit? The application loop will block waiting for the system thread if any synchronous system functions are called - https://docs.particle.io/ref…

Hey @mdma - setting up gdb as follows using openocd and the programmer shield: openocd -f ./particle-ftdi.cfg -f ./stm32f2x.cfg -c "gdb_port 3333" -c "\$_TARGETNAME configure -rtos FreeRTOS" then arm-none-eabi-gdb -ex "target remote localhost:3333" ../build/brewbot-photon.elf having built my .e…

[v0.4.8-rc1 / v0.4.9] WiFi Reconnection Issue

Firmware

peekay123 January 8, 2016, 4:08pm 2

@mhazley, this is great work! I wonder if this other topic is related to the SOS issue, which I believe is related to problem 1 IMO:

Topic		Replies	Views
WiFi channel switching stops WiFi connectivity and is only recoverable by reboot (BUG) Firmware	37	5606	September 17, 2019
Long Term Photon Connection Stability Troubleshooting	222	34932	June 25, 2020
WiFi reconnection issue - what does this trace mean? Firmware	41	3664	June 3, 2021
Handling WiFi out of Range Troubleshooting	17	1604	November 20, 2018
After 2h or weeks normal work - main loop OK or Crash, anyway - Solid Green Light, No wifi connection Troubleshooting	6	1937	October 2, 2016

[v0.4.8-rc1 / v0.4.9] WiFi Reconnection Issue

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