diff --git a/src/lora/lorawan.c b/src/lora/lorawan.c
index 6a369e7..ec612bc 100644
--- a/src/lora/lorawan.c
+++ b/src/lora/lorawan.c
@@ -14,7 +14,9 @@ LOG_MODULE_REGISTER(lorawan_class_a);
 extern bool relais_state;
 const static struct device *lora_dev;
 static struct lorawan_join_config join_cfg;
+static uint8_t dev_eui[8];
 static uint8_t app_key[] = LORAWAN_APP_KEY;
+static uint8_t join_eui[] = LORAWAN_APP_EUI;
 
 static void dl_callback(uint8_t port, uint8_t flags, int16_t rssi, int8_t snr, uint8_t len,
 						const uint8_t *hex_data)
@@ -46,6 +48,20 @@ struct lorawan_downlink_cb downlink_cb = {
 
 void init_lorawan()
 {
+
+	/* set dev eui from MCU-ID (UID) of STM32WL */
+	uint32_t uid_l = HAL_GetUIDw0();
+	uint32_t uid_h = HAL_GetUIDw1();
+
+	dev_eui[0] = (uid_h >> 24) & 0xFF;
+	dev_eui[1] = (uid_h >> 16) & 0xFF;
+	dev_eui[2] = (uid_h >> 8) & 0xFF;
+	dev_eui[3] = (uid_h) & 0xFF;
+	dev_eui[4] = (uid_l >> 24) & 0xFF;
+	dev_eui[5] = (uid_l >> 16) & 0xFF;
+	dev_eui[6] = (uid_l >> 8) & 0xFF;
+	dev_eui[7] = (uid_l) & 0xFF;
+
 	int err;
 
 	lora_dev = DEVICE_DT_GET(DT_ALIAS(lora0));
@@ -69,8 +85,9 @@ void init_lorawan()
 	lorawan_register_downlink_callback(&downlink_cb);
 
 	join_cfg.mode = LORAWAN_ACT_OTAA;
+	join_cfg.dev_eui = dev_eui;
+	join_cfg.otaa.join_eui = join_eui;
 	join_cfg.otaa.app_key = app_key;
-	join_cfg.otaa.dev_nonce = sys_rand16_get();
 }
 
 void join_network_otaa()
@@ -79,8 +96,6 @@ void join_network_otaa()
 	while (lorawan_join(&join_cfg) < 0)
 	{
 		LOG_ERR("lorawan_join_network failed: %d, retrying..", ret);
-		// use another dev nonce
-		join_cfg.otaa.dev_nonce = sys_rand16_get();
 		k_sleep(K_MSEC(5000));
 	}
 	LOG_INF("Succesfully joined network over OTAA");
diff --git a/src/lora/lorawan.h b/src/lora/lorawan.h
index 57ead51..f9e9dc2 100644
--- a/src/lora/lorawan.h
+++ b/src/lora/lorawan.h
@@ -7,9 +7,11 @@
 #define LORAWAN_APP_KEY {0x71, 0x5A, 0x39, 0xB2, 0x86, 0xC3, \
 						 0x37, 0xA3, 0xC4, 0xF0, 0x78, 0xF9, \
 						 0x0F, 0x33, 0x07, 0x7D}
+#define LORAWAN_APP_EUI {0x1F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, \
+						 0x0F, 0x0F}
 
 #define RETRY_DELAY K_MSEC(1000)
-#define SEND_INTERVALL K_SECONDS(20)
+#define SEND_INTERVALL K_MINUTES(5)
 
 void init_lorawan();