diff --git a/examples/protocols/mqtt/publish_test/main/publish_test.c b/examples/protocols/mqtt/publish_test/main/publish_test.c
index 2a20d1a..b6b7e53 100644
--- a/examples/protocols/mqtt/publish_test/main/publish_test.c
+++ b/examples/protocols/mqtt/publish_test/main/publish_test.c
@@ -169,7 +169,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
diff --git a/examples/protocols/mqtt/ssl/main/app_main.c b/examples/protocols/mqtt/ssl/main/app_main.c
index f8e8573..1afb9c0 100644
--- a/examples/protocols/mqtt/ssl/main/app_main.c
+++ b/examples/protocols/mqtt/ssl/main/app_main.c
@@ -139,7 +139,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
diff --git a/examples/protocols/mqtt/ssl_mutual_auth/main/app_main.c b/examples/protocols/mqtt/ssl_mutual_auth/main/app_main.c
index 858f58a..6c620af 100644
--- a/examples/protocols/mqtt/ssl_mutual_auth/main/app_main.c
+++ b/examples/protocols/mqtt/ssl_mutual_auth/main/app_main.c
@@ -111,7 +111,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
diff --git a/examples/protocols/mqtt/ssl_psk/main/app_main.c b/examples/protocols/mqtt/ssl_psk/main/app_main.c
index 48e73f8..3ca754c 100644
--- a/examples/protocols/mqtt/ssl_psk/main/app_main.c
+++ b/examples/protocols/mqtt/ssl_psk/main/app_main.c
@@ -128,7 +128,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
diff --git a/examples/protocols/mqtt/tcp/main/app_main.c b/examples/protocols/mqtt/tcp/main/app_main.c
index d4b631e..2c2abbe 100644
--- a/examples/protocols/mqtt/tcp/main/app_main.c
+++ b/examples/protocols/mqtt/tcp/main/app_main.c
@@ -138,7 +138,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
diff --git a/examples/protocols/mqtt/ws/main/app_main.c b/examples/protocols/mqtt/ws/main/app_main.c
index 5af121f..96b29e3 100644
--- a/examples/protocols/mqtt/ws/main/app_main.c
+++ b/examples/protocols/mqtt/ws/main/app_main.c
@@ -111,7 +111,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
diff --git a/examples/protocols/mqtt/wss/main/app_main.c b/examples/protocols/mqtt/wss/main/app_main.c
index 29b5de1..61b7b44 100644
--- a/examples/protocols/mqtt/wss/main/app_main.c
+++ b/examples/protocols/mqtt/wss/main/app_main.c
@@ -120,7 +120,7 @@ void app_main(void)
     esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
 
     ESP_ERROR_CHECK(nvs_flash_init());
-    esp_netif_init();
+    ESP_ERROR_CHECK(esp_netif_init());
     ESP_ERROR_CHECK(esp_event_loop_create_default());
 
     /* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.