From f6d59b756804ae25c29c5680b77ea104e6477d80 Mon Sep 17 00:00:00 2001
From: Bernd Giesecke <bernd@giesecke.tk>
Date: Wed, 23 Oct 2019 10:48:03 +0800
Subject: [PATCH] Fix  [issue
 #12](https://github.com/VSChina/ESP32_AzureIoT_Arduino/issues/12) and [issue
 18](https://github.com/VSChina/ESP32_AzureIoT_Arduino/issues/18) ```
 assertion "Operating mode must not be set while SNTP client is running"
 failed: file
 "/home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/lwip/lwip/src/apps/sntp/sntp.c",
 line 600, function: sntp_setoperatingmode ``` `SNTP_Deinit();` required
 before `sntp_setoperatingmode(SNTP_OPMODE_POLL);` if SNTP was initialized
 already.

---
 src/az_iot/c-utility/pal/lwip/sntp_lwip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/az_iot/c-utility/pal/lwip/sntp_lwip.c b/src/az_iot/c-utility/pal/lwip/sntp_lwip.c
index 57ec43c..0546532 100644
--- a/src/az_iot/c-utility/pal/lwip/sntp_lwip.c
+++ b/src/az_iot/c-utility/pal/lwip/sntp_lwip.c
@@ -36,6 +36,7 @@ int SNTP_SetServerName(const char* serverName)
 int SNTP_Init()
 {
 	LogInfo("Initializing SNTP");
+	SNTP_Deinit();
 	sntp_setoperatingmode(SNTP_OPMODE_POLL);
 	sntp_init();
 	time_t ts = 0;