diff --git a/components/esp32/cpu_start.c b/components/esp32/cpu_start.c
index 87b964943..1055760b1 100644
--- a/components/esp32/cpu_start.c
+++ b/components/esp32/cpu_start.c
@@ -395,6 +395,7 @@ void start_cpu0_default(void)
 
 #if CONFIG_SW_COEXIST_ENABLE
     esp_coex_adapter_register(&g_coex_adapter_funcs);
+    coex_pre_init();
 #endif
 
     bootloader_flash_update_id();
diff --git a/components/esp32/esp_adapter.c b/components/esp32/esp_adapter.c
index f464525f9..3da0d7e18 100644
--- a/components/esp32/esp_adapter.c
+++ b/components/esp32/esp_adapter.c
@@ -557,6 +557,8 @@ wifi_osi_funcs_t g_wifi_osi_funcs = {
     ._dport_access_stall_other_cpu_end_wrap = esp_dport_access_stall_other_cpu_end_wrap,
     ._phy_rf_deinit = esp_phy_rf_deinit,
     ._phy_load_cal_and_init = esp_phy_load_cal_and_init,
+    ._phy_common_clock_enable = esp_phy_common_clock_enable,
+    ._phy_common_clock_disable = esp_phy_common_clock_disable,
     ._read_mac = esp_read_mac,
     ._timer_arm = timer_arm_wrapper,
     ._timer_disarm = timer_disarm_wrapper,
diff --git a/components/esp32/include/esp_coexist_internal.h b/components/esp32/include/esp_coexist_internal.h
index 63f35666d..bdd023a93 100644
--- a/components/esp32/include/esp_coexist_internal.h
+++ b/components/esp32/include/esp_coexist_internal.h
@@ -31,6 +31,14 @@ typedef enum {
 
 typedef void (* coex_func_cb_t)(uint32_t event, int sched_cnt);
 
+/**
+ * @brief Pre-Init software coexist
+ *        extern function for internal use.
+ *
+ * @return Init ok or failed.
+ */
+esp_err_t coex_pre_init(void);
+
 /**
  * @brief Init software coexist
  *        extern function for internal use.
diff --git a/components/esp32/include/esp_phy_init.h b/components/esp32/include/esp_phy_init.h
index 2dfb7447d..63e19f184 100644
--- a/components/esp32/include/esp_phy_init.h
+++ b/components/esp32/include/esp_phy_init.h
@@ -190,6 +190,18 @@ esp_err_t esp_phy_rf_deinit(phy_rf_module_t module);
  */
 void esp_phy_load_cal_and_init(phy_rf_module_t module);
 
+/**
+* @brief Enable WiFi/BT common clock
+*
+*/
+void esp_phy_common_clock_enable(void);
+
+/**
+* @brief Disable WiFi/BT common clock
+*
+*/
+void esp_phy_common_clock_disable(void);
+
 /**
  * @brief Module requires to enter modem sleep
  */
diff --git a/components/esp32/include/esp_wifi.h b/components/esp32/include/esp_wifi.h
index 3285fd350..7dc13f437 100644
--- a/components/esp32/include/esp_wifi.h
+++ b/components/esp32/include/esp_wifi.h
@@ -542,8 +542,10 @@ esp_err_t esp_wifi_get_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t *bw);
 /**
   * @brief     Set primary/secondary channel of ESP32
   *
-  * @attention 1. This is a special API for sniffer
-  * @attention 2. This API should be called after esp_wifi_start() and esp_wifi_set_promiscuous()
+  * @attention 1. This API should be called after esp_wifi_start()
+  * @attention 2. When ESP32 is in STA mode, this API should not be called when STA is scanning or connecting to an external AP
+  * @attention 3. When ESP32 is in softAP mode, this API should not be called when softAP has connected to external STAs
+  * @attention 4. When ESP32 is in STA+softAP mode, this API should not be called when in the scenarios described above  
   *
   * @param     primary  for HT20, primary is the channel number, for HT40, primary is the primary channel
   * @param     second   for HT20, second is ignored, for HT40, second is the second channel
diff --git a/components/esp32/include/esp_wifi_internal.h b/components/esp32/include/esp_wifi_internal.h
index d41b099db..851d5ebfe 100644
--- a/components/esp32/include/esp_wifi_internal.h
+++ b/components/esp32/include/esp_wifi_internal.h
@@ -256,6 +256,43 @@ esp_err_t esp_wifi_internal_update_mac_time( uint32_t time_delta );
  */
 esp_err_t esp_wifi_internal_ioctl(int cmd, wifi_ioctl_config_t *cfg);
 
+/**
+  * @brief     Get the user-configured channel info 
+  *
+  * @param     ifx : WiFi interface 
+  * @param     primary : store the configured primary channel 
+  * @param     second : store the configured second channel
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  */
+esp_err_t esp_wifi_internal_get_config_channel(wifi_interface_t ifx, uint8_t *primary, uint8_t *second);
+
+/**
+  * @brief     Get the negotiated channel info after WiFi connection established 
+  *
+  * @param     ifx : WiFi interface 
+  * @param     aid : the connection number when a STA connects to the softAP    
+  * @param     primary : store the negotiated primary channel 
+  * @param     second : store the negotiated second channel
+  * @attention the aid param is only works when the ESP32 in softAP/softAP+STA mode 
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  */
+esp_err_t esp_wifi_internal_get_negotiated_channel(wifi_interface_t ifx, uint8_t aid, uint8_t *primary, uint8_t *second);
+
+/**
+  * @brief     Get the negotiated bandwidth info after WiFi connection established 
+  *
+  * @param     ifx : WiFi interface 
+  * @param     bw : store the negotiated bandwidth 
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  */
+esp_err_t esp_wifi_internal_get_negotiated_bandwidth(wifi_interface_t ifx, uint8_t aid, uint8_t *bw);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/components/esp32/include/esp_wifi_os_adapter.h b/components/esp32/include/esp_wifi_os_adapter.h
index c8b8766de..89778661a 100644
--- a/components/esp32/include/esp_wifi_os_adapter.h
+++ b/components/esp32/include/esp_wifi_os_adapter.h
@@ -78,6 +78,8 @@ typedef struct {
     void (* _dport_access_stall_other_cpu_end_wrap)(void);
     int32_t (* _phy_rf_deinit)(uint32_t module);
     void (* _phy_load_cal_and_init)(uint32_t module);
+    void (* _phy_common_clock_enable)(void);
+    void (* _phy_common_clock_disable)(void);
     int32_t (* _read_mac)(uint8_t* mac, uint32_t type);
     void (* _timer_arm)(void *timer, uint32_t tmout, bool repeat);
     void (* _timer_disarm)(void *timer);
diff --git a/components/esp32/lib b/components/esp32/lib
index a94d8b9b0..eea4c8027 160000
--- a/components/esp32/lib
+++ b/components/esp32/lib
@@ -1 +1 @@
-Subproject commit a94d8b9b04d304fb27e23a9e7155d611b2d1f1c2
+Subproject commit eea4c80276a9a665afebfe326051eabebab67190
diff --git a/components/esp32/phy_init.c b/components/esp32/phy_init.c
index d1ce3ae6a..76ba14953 100644
--- a/components/esp32/phy_init.c
+++ b/components/esp32/phy_init.c
@@ -52,6 +52,12 @@ static uint32_t s_module_phy_rf_init = 0;
 /* Whether modem sleep is turned on */
 static volatile bool s_is_phy_rf_en = false;
 
+/* Whether WiFi/BT common clock enabled reference */
+static volatile int32_t s_common_clock_enable_ref = 0;
+
+/* PHY spinlock mux */
+static portMUX_TYPE s_phy_spin_lock = portMUX_INITIALIZER_UNLOCKED;
+
 /* Bit mask of modules needing to enter modem sleep mode */
 static uint32_t s_modem_sleep_module_enter = 0;
 
@@ -115,6 +121,56 @@ static inline void phy_update_wifi_mac_time(bool en_clock_stopped, int64_t now)
     }
 }
 
+IRAM_ATTR static inline void phy_spin_lock(void)
+{
+    if (xPortInIsrContext()) {
+        portENTER_CRITICAL_ISR(&s_phy_spin_lock);
+    } else {
+        portENTER_CRITICAL(&s_phy_spin_lock);
+    }
+}
+
+IRAM_ATTR static inline void phy_spin_unlock(void)
+{
+    if (xPortInIsrContext()) {
+        portEXIT_CRITICAL_ISR(&s_phy_spin_lock);
+    } else {
+        portEXIT_CRITICAL(&s_phy_spin_lock);
+    }
+}
+
+IRAM_ATTR void esp_phy_common_clock_enable(void)
+{
+    phy_spin_lock();
+
+    if (s_common_clock_enable_ref == 0) {
+        // Enable WiFi/BT common clock
+        periph_module_enable(PERIPH_WIFI_BT_COMMON_MODULE);
+    }
+
+    s_common_clock_enable_ref++;
+    phy_spin_unlock();
+}
+
+IRAM_ATTR void esp_phy_common_clock_disable(void)
+{
+    phy_spin_lock();
+
+    if (s_common_clock_enable_ref > 0) {
+        s_common_clock_enable_ref --;
+
+        if (s_common_clock_enable_ref == 0) {
+             // Disable WiFi/BT common clock
+             periph_module_disable(PERIPH_WIFI_BT_COMMON_MODULE);
+        }
+    } else {
+        abort();
+    }
+
+    phy_spin_unlock();
+}
+
+
 esp_err_t esp_phy_rf_init(const esp_phy_init_data_t* init_data, esp_phy_calibration_mode_t mode, 
                           esp_phy_calibration_data_t* calibration_data, phy_rf_module_t module)
 {
@@ -163,7 +219,8 @@ esp_err_t esp_phy_rf_init(const esp_phy_init_data_t* init_data, esp_phy_calibrat
             // Update WiFi MAC time before WiFi/BT common clock is enabled
             phy_update_wifi_mac_time(false, s_phy_rf_en_ts);
             // Enable WiFi/BT common peripheral clock
-            periph_module_enable(PERIPH_WIFI_BT_COMMON_MODULE);
+            //periph_module_enable(PERIPH_WIFI_BT_COMMON_MODULE);
+            esp_phy_common_clock_enable();
             phy_set_wifi_mode_only(0);
 
             if (ESP_CAL_DATA_CHECK_FAIL == register_chipv7_phy(init_data, calibration_data, mode)) {
@@ -248,7 +305,8 @@ esp_err_t esp_phy_rf_deinit(phy_rf_module_t module)
             // Update WiFi MAC time before disalbe WiFi/BT common peripheral clock
             phy_update_wifi_mac_time(true, esp_timer_get_time());
             // Disable WiFi/BT common peripheral clock. Do not disable clock for hardware RNG
-            periph_module_disable(PERIPH_WIFI_BT_COMMON_MODULE);
+            //periph_module_disable(PERIPH_WIFI_BT_COMMON_MODULE);
+            esp_phy_common_clock_disable();
         }
     }
 
diff --git a/components/lwip/Kconfig b/components/lwip/Kconfig
index 6b6bdc0d6..ccf84731b 100644
--- a/components/lwip/Kconfig
+++ b/components/lwip/Kconfig
@@ -85,7 +85,7 @@ config LWIP_DHCP_MAX_NTP_SERVERS
 
 config LWIP_IP_FRAG
     bool "Enable fragment outgoing IP packets"
-    default n
+    default y
     help
         Enabling this option allows fragmenting outgoing IP packets if their size
         exceeds MTU.
diff --git a/components/lwip/lwip b/components/lwip/lwip
index 5d80af7d5..39f338547 160000
--- a/components/lwip/lwip
+++ b/components/lwip/lwip
@@ -1 +1 @@
-Subproject commit 5d80af7d59c10b7890f0fc862e4efe807ce5fb73
+Subproject commit 39f338547ab344e855f94eb922421036bee8e417