Adafruit Huzzah ESP32 Crash after Azure IoT Hub Timeout - Running Microsoft Sample Code

[jpagliaccio]

I followed the Microsoft Tutorial and got Azure working for the Adafruit Huzzah32 Feather. I set the message timer to send to Azure to 90 seconds. But every 20-30 messages it crashes and reboots the Huzzah.

Here is the serial out. You can see message 30 and 31 are okay. But then there is a timeout and when it tries to reconnect there is a SNTP failure.

Any ideas how to fix would be great. Thanks.

Msg: {"deviceId":"Esp32Device", "messageId":30, "Temperature":4.000000, "Humidity":19.200001}
Info: >>>IoTHubClient_LL_SendEventAsync accepted message for transmission to IoT Hub.
Info: >>>Confirmation[29] received for message tracking id = 29 with result = IOTHUB_CLIENT_CONFIRMATION_OK
Send Confirmation Callback finished.

Msg: {"deviceId":"Esp32Device", "messageId":31, "Temperature":7.000000, "Humidity":77.099998}
Info: >>>IoTHubClient_LL_SendEventAsync accepted message for transmission to IoT Hub.
Info: >>>Confirmation[30] received for message tracking id = 30 with result = IOTHUB_CLIENT_CONFIRMATION_OK
Send Confirmation Callback finished.

Info: >>>Connection status: timeout
Info: >>>Re-connect.
Info: Initializing SNTP
assertion "Operating mode must not be set while SNTP client is running" failed: file "/Users/ficeto/Desktop/ESP32/ESP32/esp-idf-public/components/lwip/apps/sntp/sntp.c", line 591, function: sntp_setoperatingmode
abort() was called at PC 0x400e3b83 on core 1

Backtrace: 0x4008fac0:0x3ffb1d10 0x4008fcc3:0x3ffb1d30 0x400e3b83:0x3ffb1d50 0x40119945:0x3ffb1d80 0x400d3bc6:0x3ffb1da0 0x400d3f26:0x3ffb1dc0 0x400d33ce:0x3ffb1de0 0x400d3702:0x3ffb1e20 0x400d3869:0x3ffb1e40 0x400d274f:0x3ffb1e60 0x4014855c:0x3ffb1fa0

Rebooting...
ets Jun 8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:808
load:0x40078000,len:6084
load:0x40080000,len:6696
entry 0x400802e4
ESP32 Device
Initializing...

WiFi
Connecting...
..WiFi connected
IP address: 192.168.1.59
IoT Hub
Info: Initializing SNTP
Info: SNTP initialization complete
Info: IoT Hub SDK for C, version 1.1.23
Info: >>>Connection status: connected