diff --git a/components/esp8266/include/esp_wifi.h b/components/esp8266/include/esp_wifi.h
index ab156f62..e88defac 100644
--- a/components/esp8266/include/esp_wifi.h
+++ b/components/esp8266/include/esp_wifi.h
@@ -90,9 +90,6 @@ extern "C" {
 
 #define ESP_WIFI_PARAM_USE_NVS  0
 
-#define WIFI_PROTOCAL_11B  1
-#define WIFI_PROTOCAL_11G  2
-#define WIFI_PROTOCAL_11N  4
 /**
  * @brief WiFi stack configuration parameters passed to esp_wifi_init call.
  */
diff --git a/components/mqtt/esp-mqtt/examples/emitter-client/main/app_main.c b/components/mqtt/esp-mqtt/examples/emitter-client/main/app_main.c
index f8e64817..7b7197c0 100755
--- a/components/mqtt/esp-mqtt/examples/emitter-client/main/app_main.c
+++ b/components/mqtt/esp-mqtt/examples/emitter-client/main/app_main.c
@@ -44,7 +44,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/common_components/protocol_examples_common/connect.c b/examples/common_components/protocol_examples_common/connect.c
index 5b6b2814..8d8c628a 100644
--- a/examples/common_components/protocol_examples_common/connect.c
+++ b/examples/common_components/protocol_examples_common/connect.c
@@ -66,7 +66,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(s_connect_event_group, GOT_IPV4_BIT);
diff --git a/examples/protocols/aws_iot/subscribe_publish/main/subscribe_publish_sample.c b/examples/protocols/aws_iot/subscribe_publish/main/subscribe_publish_sample.c
index 5beaf086..0bf17bb0 100644
--- a/examples/protocols/aws_iot/subscribe_publish/main/subscribe_publish_sample.c
+++ b/examples/protocols/aws_iot/subscribe_publish/main/subscribe_publish_sample.c
@@ -127,7 +127,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/aws_iot/thing_shadow/main/thing_shadow_sample.c b/examples/protocols/aws_iot/thing_shadow/main/thing_shadow_sample.c
index 47403628..f4446978 100644
--- a/examples/protocols/aws_iot/thing_shadow/main/thing_shadow_sample.c
+++ b/examples/protocols/aws_iot/thing_shadow/main/thing_shadow_sample.c
@@ -144,7 +144,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/coap_client/main/coap_client_example_main.c b/examples/protocols/coap_client/main/coap_client_example_main.c
index f28df68d..7d0a5434 100644
--- a/examples/protocols/coap_client/main/coap_client_example_main.c
+++ b/examples/protocols/coap_client/main/coap_client_example_main.c
@@ -173,7 +173,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/coap_server/main/coap_server_example_main.c b/examples/protocols/coap_server/main/coap_server_example_main.c
index 9ec2be39..28860c15 100644
--- a/examples/protocols/coap_server/main/coap_server_example_main.c
+++ b/examples/protocols/coap_server/main/coap_server_example_main.c
@@ -159,7 +159,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/esp-mqtt/ssl/main/app_main.c b/examples/protocols/esp-mqtt/ssl/main/app_main.c
index 17818e4e..9830f5a7 100644
--- a/examples/protocols/esp-mqtt/ssl/main/app_main.c
+++ b/examples/protocols/esp-mqtt/ssl/main/app_main.c
@@ -44,7 +44,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/esp-mqtt/ssl_mutual_auth/main/app_main.c b/examples/protocols/esp-mqtt/ssl_mutual_auth/main/app_main.c
index adf5db9a..c26498c6 100644
--- a/examples/protocols/esp-mqtt/ssl_mutual_auth/main/app_main.c
+++ b/examples/protocols/esp-mqtt/ssl_mutual_auth/main/app_main.c
@@ -44,7 +44,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/esp-mqtt/tcp/main/app_main.c b/examples/protocols/esp-mqtt/tcp/main/app_main.c
index ea37a740..08e24588 100644
--- a/examples/protocols/esp-mqtt/tcp/main/app_main.c
+++ b/examples/protocols/esp-mqtt/tcp/main/app_main.c
@@ -90,7 +90,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/esp-mqtt/ws/main/app_main.c b/examples/protocols/esp-mqtt/ws/main/app_main.c
index 6b1e18c8..d26299e9 100644
--- a/examples/protocols/esp-mqtt/ws/main/app_main.c
+++ b/examples/protocols/esp-mqtt/ws/main/app_main.c
@@ -87,7 +87,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/esp-mqtt/wss/main/app_main.c b/examples/protocols/esp-mqtt/wss/main/app_main.c
index 06f6307d..4bd39116 100644
--- a/examples/protocols/esp-mqtt/wss/main/app_main.c
+++ b/examples/protocols/esp-mqtt/wss/main/app_main.c
@@ -44,7 +44,7 @@ static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/esp_http_client/main/app_wifi.c b/examples/protocols/esp_http_client/main/app_wifi.c
index 7d8d8d97..9c679d22 100644
--- a/examples/protocols/esp_http_client/main/app_wifi.c
+++ b/examples/protocols/esp_http_client/main/app_wifi.c
@@ -43,7 +43,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/http_request/main/http_request_example_main.c b/examples/protocols/http_request/main/http_request_example_main.c
index 23266c33..27bc4200 100644
--- a/examples/protocols/http_request/main/http_request_example_main.c
+++ b/examples/protocols/http_request/main/http_request_example_main.c
@@ -67,7 +67,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/http_server/advanced_tests/main/main.c b/examples/protocols/http_server/advanced_tests/main/main.c
index 48dead08..7fd75a54 100644
--- a/examples/protocols/http_server/advanced_tests/main/main.c
+++ b/examples/protocols/http_server/advanced_tests/main/main.c
@@ -44,7 +44,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         ESP_ERROR_CHECK(esp_wifi_connect());
 
diff --git a/examples/protocols/http_server/persistent_sockets/main/main.c b/examples/protocols/http_server/persistent_sockets/main/main.c
index 4bebbed8..a0413fed 100644
--- a/examples/protocols/http_server/persistent_sockets/main/main.c
+++ b/examples/protocols/http_server/persistent_sockets/main/main.c
@@ -216,7 +216,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         ESP_ERROR_CHECK(esp_wifi_connect());
 
diff --git a/examples/protocols/http_server/simple/main/main.c b/examples/protocols/http_server/simple/main/main.c
index d29ccaac..f7cd5b0a 100644
--- a/examples/protocols/http_server/simple/main/main.c
+++ b/examples/protocols/http_server/simple/main/main.c
@@ -243,7 +243,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         ESP_ERROR_CHECK(esp_wifi_connect());
 
diff --git a/examples/protocols/https_mbedtls/main/https_mbedtls_example_main.c b/examples/protocols/https_mbedtls/main/https_mbedtls_example_main.c
index c2879f55..6c5f0a75 100644
--- a/examples/protocols/https_mbedtls/main/https_mbedtls_example_main.c
+++ b/examples/protocols/https_mbedtls/main/https_mbedtls_example_main.c
@@ -104,7 +104,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/https_request/main/https_request_example_main.c b/examples/protocols/https_request/main/https_request_example_main.c
index e8057f41..7252e9ca 100644
--- a/examples/protocols/https_request/main/https_request_example_main.c
+++ b/examples/protocols/https_request/main/https_request_example_main.c
@@ -98,7 +98,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/ibm-mqtt/main/MQTTEcho.c b/examples/protocols/ibm-mqtt/main/MQTTEcho.c
index dcddaaf7..d7c61f22 100644
--- a/examples/protocols/ibm-mqtt/main/MQTTEcho.c
+++ b/examples/protocols/ibm-mqtt/main/MQTTEcho.c
@@ -62,7 +62,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/mdns/main/mdns_example_main.c b/examples/protocols/mdns/main/mdns_example_main.c
index bac352da..921d7076 100644
--- a/examples/protocols/mdns/main/mdns_example_main.c
+++ b/examples/protocols/mdns/main/mdns_example_main.c
@@ -70,7 +70,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
         }
diff --git a/examples/protocols/openssl_client/main/openssl_client_example_main.c b/examples/protocols/openssl_client/main/openssl_client_example_main.c
index 29c6f494..28ca8bef 100644
--- a/examples/protocols/openssl_client/main/openssl_client_example_main.c
+++ b/examples/protocols/openssl_client/main/openssl_client_example_main.c
@@ -89,7 +89,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/openssl_demo/main/openssl_demo_example_main.c b/examples/protocols/openssl_demo/main/openssl_demo_example_main.c
index a5242542..a17cb846 100644
--- a/examples/protocols/openssl_demo/main/openssl_demo_example_main.c
+++ b/examples/protocols/openssl_demo/main/openssl_demo_example_main.c
@@ -76,7 +76,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/openssl_server/main/openssl_server_example_main.c b/examples/protocols/openssl_server/main/openssl_server_example_main.c
index 7431e8a4..0ff14f85 100644
--- a/examples/protocols/openssl_server/main/openssl_server_example_main.c
+++ b/examples/protocols/openssl_server/main/openssl_server_example_main.c
@@ -89,7 +89,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/sntp/main/sntp_example_main.c b/examples/protocols/sntp/main/sntp_example_main.c
index 50687a26..f9a91b2e 100644
--- a/examples/protocols/sntp/main/sntp_example_main.c
+++ b/examples/protocols/sntp/main/sntp_example_main.c
@@ -88,7 +88,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
             xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/protocols/sockets/tcp_client/main/tcp_client.c b/examples/protocols/sockets/tcp_client/main/tcp_client.c
index cd546ddb..83d2dd86 100644
--- a/examples/protocols/sockets/tcp_client/main/tcp_client.c
+++ b/examples/protocols/sockets/tcp_client/main/tcp_client.c
@@ -74,7 +74,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, IPV4_GOTIP_BIT);
diff --git a/examples/protocols/sockets/tcp_server/main/tcp_server.c b/examples/protocols/sockets/tcp_server/main/tcp_server.c
index d7c6472a..334bbff4 100644
--- a/examples/protocols/sockets/tcp_server/main/tcp_server.c
+++ b/examples/protocols/sockets/tcp_server/main/tcp_server.c
@@ -67,7 +67,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, IPV4_GOTIP_BIT);
diff --git a/examples/protocols/sockets/udp_client/main/udp_client.c b/examples/protocols/sockets/udp_client/main/udp_client.c
index 79f9aaa5..361f0749 100644
--- a/examples/protocols/sockets/udp_client/main/udp_client.c
+++ b/examples/protocols/sockets/udp_client/main/udp_client.c
@@ -74,7 +74,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, IPV4_GOTIP_BIT);
diff --git a/examples/protocols/sockets/udp_multicast/main/udp_multicast_example_main.c b/examples/protocols/sockets/udp_multicast/main/udp_multicast_example_main.c
index 5dea3f6a..b7e42dcd 100644
--- a/examples/protocols/sockets/udp_multicast/main/udp_multicast_example_main.c
+++ b/examples/protocols/sockets/udp_multicast/main/udp_multicast_example_main.c
@@ -79,7 +79,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, IPV4_GOTIP_BIT);
diff --git a/examples/protocols/sockets/udp_server/main/udp_server.c b/examples/protocols/sockets/udp_server/main/udp_server.c
index 2e81d0c5..d5a40506 100644
--- a/examples/protocols/sockets/udp_server/main/udp_server.c
+++ b/examples/protocols/sockets/udp_server/main/udp_server.c
@@ -67,7 +67,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, IPV4_GOTIP_BIT);
diff --git a/examples/provisioning/custom_config/main/app_prov.c b/examples/provisioning/custom_config/main/app_prov.c
index ad7253e3..64403ce5 100644
--- a/examples/provisioning/custom_config/main/app_prov.c
+++ b/examples/provisioning/custom_config/main/app_prov.c
@@ -217,7 +217,7 @@ esp_err_t app_prov_event_handler(void *ctx, system_event_t *event)
             g_prov->wifi_state = WIFI_PROV_STA_CONNECTING;
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             esp_wifi_connect();
         }
diff --git a/examples/provisioning/softap_prov/main/app_prov.c b/examples/provisioning/softap_prov/main/app_prov.c
index 864fe7fc..495c0899 100644
--- a/examples/provisioning/softap_prov/main/app_prov.c
+++ b/examples/provisioning/softap_prov/main/app_prov.c
@@ -200,7 +200,7 @@ esp_err_t app_prov_event_handler(void *ctx, system_event_t *event)
         default:
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             /* If none of the expected reasons,
              * retry connecting to host SSID */
diff --git a/examples/system/console/main/cmd_wifi.c b/examples/system/console/main/cmd_wifi.c
index c60f1e81..8233203d 100644
--- a/examples/system/console/main/cmd_wifi.c
+++ b/examples/system/console/main/cmd_wifi.c
@@ -36,7 +36,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGI(__func__, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old/main/ota_example_main.c b/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old/main/ota_example_main.c
index 4f1838da..7e6c29ba 100644
--- a/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old/main/ota_example_main.c
+++ b/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old/main/ota_example_main.c
@@ -92,7 +92,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old_copy/main/ota_example_main.c b/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old_copy/main/ota_example_main.c
index 4df5a494..d7cd125a 100644
--- a/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old_copy/main/ota_example_main.c
+++ b/examples/system/ota/native_ota/1MB_flash/new_to_new_no_old_copy/main/ota_example_main.c
@@ -92,7 +92,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/system/ota/native_ota/1MB_flash/new_to_new_with_old/main/ota_example_main.c b/examples/system/ota/native_ota/1MB_flash/new_to_new_with_old/main/ota_example_main.c
index 53bb569c..29bdf0a7 100644
--- a/examples/system/ota/native_ota/1MB_flash/new_to_new_with_old/main/ota_example_main.c
+++ b/examples/system/ota/native_ota/1MB_flash/new_to_new_with_old/main/ota_example_main.c
@@ -95,7 +95,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/system/ota/native_ota/2+MB_flash/new_to_new_no_old/main/ota_example_main.c b/examples/system/ota/native_ota/2+MB_flash/new_to_new_no_old/main/ota_example_main.c
index 4df5a494..d7cd125a 100644
--- a/examples/system/ota/native_ota/2+MB_flash/new_to_new_no_old/main/ota_example_main.c
+++ b/examples/system/ota/native_ota/2+MB_flash/new_to_new_no_old/main/ota_example_main.c
@@ -92,7 +92,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/system/ota/native_ota/2+MB_flash/new_to_new_with_old/main/ota_example_main.c b/examples/system/ota/native_ota/2+MB_flash/new_to_new_with_old/main/ota_example_main.c
index 53bb569c..29bdf0a7 100644
--- a/examples/system/ota/native_ota/2+MB_flash/new_to_new_with_old/main/ota_example_main.c
+++ b/examples/system/ota/native_ota/2+MB_flash/new_to_new_with_old/main/ota_example_main.c
@@ -95,7 +95,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/system/ota/simple_ota_example/main/simple_ota_example.c b/examples/system/ota/simple_ota_example/main/simple_ota_example.c
index c2796429..717dca85 100644
--- a/examples/system/ota/simple_ota_example/main/simple_ota_example.c
+++ b/examples/system/ota/simple_ota_example/main/simple_ota_example.c
@@ -77,7 +77,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/wifi/power_save/main/power_save.c b/examples/wifi/power_save/main/power_save.c
index f181ad23..9b119fa0 100644
--- a/examples/wifi/power_save/main/power_save.c
+++ b/examples/wifi/power_save/main/power_save.c
@@ -69,7 +69,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         break;
diff --git a/examples/wifi/simple_wifi/main/simple_wifi.c b/examples/wifi/simple_wifi/main/simple_wifi.c
index e92bd64d..899eec34 100644
--- a/examples/wifi/simple_wifi/main/simple_wifi.c
+++ b/examples/wifi/simple_wifi/main/simple_wifi.c
@@ -65,7 +65,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, WIFI_CONNECTED_BIT);
diff --git a/examples/wifi/smart_config/main/smartconfig_main.c b/examples/wifi/smart_config/main/smartconfig_main.c
index 5bca3459..5ca2c3f2 100644
--- a/examples/wifi/smart_config/main/smartconfig_main.c
+++ b/examples/wifi/smart_config/main/smartconfig_main.c
@@ -49,7 +49,7 @@ static esp_err_t event_handler(void *ctx, system_event_t *event)
         ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
         if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
             /*Switch to 802.11 bgn mode */
-            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+            esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
         }
         esp_wifi_connect();
         xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
diff --git a/examples/wifi/wpa2_enterprise/main/wpa2_enterprise_main.c b/examples/wifi/wpa2_enterprise/main/wpa2_enterprise_main.c
index c24466cd..0a263edf 100644
--- a/examples/wifi/wpa2_enterprise/main/wpa2_enterprise_main.c
+++ b/examples/wifi/wpa2_enterprise/main/wpa2_enterprise_main.c
@@ -110,7 +110,7 @@ static esp_err_t event_handler(void* ctx, system_event_t* event)
 
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
 
             esp_wifi_connect();
diff --git a/examples/wifi/wps/main/wps.c b/examples/wifi/wps/main/wps.c
index bef9ebb8..f3de273c 100644
--- a/examples/wifi/wps/main/wps.c
+++ b/examples/wifi/wps/main/wps.c
@@ -60,7 +60,7 @@ static esp_err_t event_handler(void* ctx, system_event_t* event)
             ESP_LOGE(TAG, "Disconnect reason : %d", info->disconnected.reason);
             if (info->disconnected.reason == WIFI_REASON_BASIC_RATE_NOT_SUPPORT) {
                 /*Switch to 802.11 bgn mode */
-                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCAL_11B | WIFI_PROTOCAL_11G | WIFI_PROTOCAL_11N);
+                esp_wifi_set_protocol(ESP_IF_WIFI_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
             }
             ESP_ERROR_CHECK(esp_wifi_connect());
             break;