Photon crashes with TCPServer and no internet connection

[khp]

Did you guys see this thread?

WiFi channel switching stops WiFi connectivity and is only recoverable by reboot (BUG)

I have reported a bug before here, but apparently it cannot be confirmed. Now I have set up a minimal example to reproduce it. I have this code on the Photon: It listens on TCP for ‘t’ and responds with ‘toc’. Every second it prints WiFi status and IP. #include "application.h" SYSTEM_MODE(MANUAL); SYSTEM_THREAD(ENABLED); void setup() { Serial.begin(115200); } void loop() { static uint32_t last_update = millis(); static TCPServer tcpServer = TCPServer(6666); static TCPC…

I too had problems with stability when using TCPServer on an connection with intermittent WiFi or WAN.

At the very end of the thread there’s discussion of disabling SYSTEM_FLAG_RESET_NETWORK_ON_CLOUD_ERRORS and that seems to be the ticket for me (with my app running on 0.7.0).