WiFi reconnection issue - what does this trace mean?

[UMD]

@dan.s, good question re memory.

Memory is especially an issue with later versions of DeviceOS.

Here are some posts for you to ponder:

Photon/P1 Unable to connect to setup WiFi after upgrade to OS v1.5.0

With the same firmware code. After I have upgraded from OS v1.4.4 to v1.5.0, I am not able to setup WiFi through serial or through the softAP anymore. I did discover during listening mode (softAP on) I had around 17000 Bytes of free memory with my firmware in OS v1.4.4 and went to around 1000 Bytes of free memory with the same firmware in OS v1.5.0. With SoftAP off, 35000 bytes for v1.4.4 and 25000 bytes for v1.5.0 I freed modified my firmware to have around 5000 Bytes of free memory without su…

Device OS 1.5.2 Memory Use

I was doing some regression testing of an application built on 1.5.2 - the wifi setup using SoftAP didn’t work because the memory was too low. Checking the vitals I noticed that 50kB was in use out of 81kB RAM available. I tried rebuilding the same application on 1.4.4 and the vitals now show 39kB in use. That’s a big jump in OS RAM usage - have I missed something in the release notes about this?

etc....

Mention was made here that 10K of free memory was required when using SoftAP:

Using Soft AP example - can't connect to HTTP

UPDATE: I was able to get reliable ping AND connection to the HTTP service on port 80 with the device. How? I put the device into SAFE MODE then into LISTEN MODE… I believe this to be the default SoftAP mode of operation and not my code, because there was no head or body content, just the the HTML tags.

My guess - at least 10K of free memory is required. You need to instrument your code using freeMemory() to test.