diff --git a/src/platform/silabs/rs911x/BLEManagerImpl.cpp b/src/platform/silabs/rs911x/BLEManagerImpl.cpp
index 9b2b543a330055..d7477b1fa7b494 100644
--- a/src/platform/silabs/rs911x/BLEManagerImpl.cpp
+++ b/src/platform/silabs/rs911x/BLEManagerImpl.cpp
@@ -130,6 +130,7 @@ void sl_ble_event_handling_task(void)
             // Requests the connection parameters change with the remote device
             rsi_ble_conn_params_update(event_msg.resp_enh_conn.dev_addr, BLE_MIN_CONNECTION_INTERVAL_MS,
                                        BLE_MAX_CONNECTION_INTERVAL_MS, BLE_SLAVE_LATENCY_MS, BLE_TIMEOUT_MS);
+            rsi_ble_set_data_len(event_msg.resp_enh_conn.dev_addr, RSI_BLE_TX_OCTETS, RSI_BLE_TX_TIME);
         }
         break;
         case RSI_BLE_DISCONN_EVENT: {
diff --git a/src/platform/silabs/rs911x/rsi_ble_config.h b/src/platform/silabs/rs911x/rsi_ble_config.h
index 1b6040542ba674..bb75266c14b712 100644
--- a/src/platform/silabs/rs911x/rsi_ble_config.h
+++ b/src/platform/silabs/rs911x/rsi_ble_config.h
@@ -60,6 +60,14 @@
 #define ADD_DEVICE_TO_WHITELIST (0x01)
 #define DELETE_DEVICE_FROM_WHITELIST (0x02)
 
+#define CLEAR_ACCEPTLIST (0x00)
+#define ADD_DEVICE_TO_ACCEPTLIST (0x01)
+#define DELETE_DEVICE_FROM_ACCEPTLIST (0x02)
+
+#define RSI_BLE_TX_OCTETS 251
+#define RSI_BLE_TX_TIME 2120
+#define RSI_BLE_CS_DATA_LENGTH 240
+
 #define ALL_PHYS (0x00)
 
 #define RSI_BLE_DEV_ADDR_RESOLUTION_ENABLE (0)
diff --git a/src/platform/silabs/rs911x/wfx_sl_ble_init.c b/src/platform/silabs/rs911x/wfx_sl_ble_init.c
index 1344847962b5d1..3f141da98c3a50 100644
--- a/src/platform/silabs/rs911x/wfx_sl_ble_init.c
+++ b/src/platform/silabs/rs911x/wfx_sl_ble_init.c
@@ -354,7 +354,7 @@ uint32_t rsi_ble_add_matter_service(void)
     uuid_t custom_service    = { RSI_BLE_MATTER_CUSTOM_SERVICE_UUID };
     custom_service.size      = RSI_BLE_MATTER_CUSTOM_SERVICE_SIZE;
     custom_service.val.val16 = RSI_BLE_MATTER_CUSTOM_SERVICE_VALUE_16;
-    uint8_t data[230]        = { RSI_BLE_MATTER_CUSTOM_SERVICE_DATA };
+    uint8_t data[RSI_BLE_CS_DATA_LENGTH]        = { RSI_BLE_MATTER_CUSTOM_SERVICE_DATA };
 
     static const uuid_t custom_characteristic_RX = { .size             = RSI_BLE_CUSTOM_CHARACTERISTIC_RX_SIZE,
                                                      .reserved         = { RSI_BLE_CUSTOM_CHARACTERISTIC_RX_RESERVED },
diff --git a/third_party/silabs/SiWx917_sdk.gni b/third_party/silabs/SiWx917_sdk.gni
index 79fbf8516347c6..0cfa450b0fa906 100644
--- a/third_party/silabs/SiWx917_sdk.gni
+++ b/third_party/silabs/SiWx917_sdk.gni
@@ -75,16 +75,22 @@ template("siwx917_sdk") {
       # siwx917_soc component
       "${wifi_sdk_root}/components/siwx917_soc/core/config",
       "${wifi_sdk_root}/components/siwx917_soc/inc",
+      "${wifi_sdk_root}/components/siwx917_soc/boards/config/brd4325b",
+      "${wifi_sdk_root}/components/siwx917_soc/boards/inc",
+      "${wifi_sdk_root}/components/siwx917_soc/core/chip/inc",
+      "${wifi_sdk_root}/components/siwx917_soc/core/config",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/cmsis_driver",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/cmsis_driver/config",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/cmsis_driver/CMSIS/Driver/Include",
+      "${wifi_sdk_root}/components/siwx917_soc/drivers/service/nvm3/inc",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/systemlevel/inc",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/peripheral_drivers/inc",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/rom_driver/inc",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/unified_api/inc",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/unified_api/config",
-      "${wifi_sdk_root}/components/siwx917_soc/boards/brd4325x/inc",
-      "${wifi_sdk_root}/components/siwx917_soc/wifi_inc",
+      "${wifi_sdk_root}/components/siwx917_soc/hal/inc",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/inc",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/wifi_inc",
 
       # wifi component
       "${wifi_sdk_root}/components/protocol/wifi/inc",
@@ -170,6 +176,7 @@ template("siwx917_sdk") {
       "FLASH_PAGE_SIZE",
       "SL_NVM3_PRESENT",
       "ROM_WIRELESS",
+      "BRD4325A", #TODO: should be removed after SoC macro clean-up
     ]
 
     if (silabs_board == "BRD4325B") {
@@ -326,14 +333,13 @@ template("siwx917_sdk") {
 
       # si91x_support component
       "${wifi_sdk_root}/components/si91x_support/src/sl_utility.c",
-      "${wifi_sdk_root}/components/siwx917_soc/boards/brd4325x/src/rsi_board.c",
+      "${wifi_sdk_root}/components/siwx917_soc/boards/src/rsi_board.c",
       "${wifi_sdk_root}/components/siwx917_soc/core/chip/src/rsi_deepsleep_soc.c",
+      "${wifi_sdk_root}/components/siwx917_soc/core/chip/src/rsi_system_config.c",
       "${wifi_sdk_root}/components/siwx917_soc/core/chip/src/system_si91x.c",
       "${wifi_sdk_root}/components/siwx917_soc/core/config/src/rsi_nvic_priorities_config.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/cmsis_driver/UDMA.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/cmsis_driver/USART.c",
-      "${wifi_sdk_root}/components/siwx917_soc/drivers/ipmu/ipmu_apis.c",
-      "${wifi_sdk_root}/components/siwx917_soc/drivers/ipmu/rsi_system_config_9117.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/peripheral_drivers/src/clock_update.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/peripheral_drivers/src/rsi_egpio.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/peripheral_drivers/src/rsi_udma.c",
@@ -347,13 +353,13 @@ template("siwx917_sdk") {
       "${wifi_sdk_root}/components/siwx917_soc/drivers/systemlevel/src/rsi_temp_sensor.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/systemlevel/src/rsi_ulpss_clk.c",
       "${wifi_sdk_root}/components/siwx917_soc/drivers/unified_api/src/sl_si91x_usart.c",
-      "${wifi_sdk_root}/components/siwx917_soc/rsi_hal_mcu_m4_ram.c",
-      "${wifi_sdk_root}/components/siwx917_soc/rsi_hal_mcu_m4_rom.c",
-      "${wifi_sdk_root}/components/siwx917_soc/sl_platform.c",
-      "${wifi_sdk_root}/components/siwx917_soc/sl_platform_wireless.c",
-      "${wifi_sdk_root}/components/siwx917_soc/sl_si91x_bus.c",
-      "${wifi_sdk_root}/components/siwx917_soc/sl_si91x_timer.c",
-      "${wifi_sdk_root}/components/siwx917_soc/sli_siwx917_soc.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/rsi_hal_mcu_m4_ram.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/rsi_hal_mcu_m4_rom.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/sl_platform.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/sl_platform_wireless.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/sl_si91x_bus.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/sl_si91x_timer.c",
+      "${wifi_sdk_root}/components/siwx917_soc/platform_connectivity/sli_siwx917_soc.c",
 
       # modified hal
       "${efr32_sdk_root}/platform/emdrv/nvm3/src/nvm3_default_common_linker.c",
@@ -372,7 +378,7 @@ template("siwx917_sdk") {
       "${sdk_support_root}/matter/si91x/siwx917/${sdk_support_board}/autogen/sl_event_handler.c",
       "${sdk_support_root}/matter/si91x/siwx917/${sdk_support_board}/support/hal/rsi_hal_mcu_m4.c",
       "${sdk_support_root}/matter/si91x/siwx917/${sdk_support_board}/support/hal/rsi_hal_mcu_platform_init.c",
-      "${wifi_sdk_root}/components/siwx917_soc/drivers/middleware/nvm3/src/sl_si91x_nvm3_hal_flash.c",
+      "${wifi_sdk_root}/components/siwx917_soc/drivers/service/nvm3/src/sl_si91x_nvm3_hal_flash.c",
 
       # mbedtls
       "${chip_root}/third_party/mbedtls/repo/library/aes.c",
@@ -422,7 +428,7 @@ template("siwx917_sdk") {
     if (wifi_soc_common_flash) {
       sources += [
         "${sdk_support_root}/matter/si91x/siwx917/${sdk_support_board}/support/src/startup_common_RS1xxxx.c",
-        "${wifi_sdk_root}/components/siwx917_soc/drivers/middleware/nvm3/src/sl_si91x_common_flash_intf.c",
+        "${wifi_sdk_root}/components/siwx917_soc/drivers/service/nvm3/src/sl_si91x_common_flash_intf.c",
       ]
     }
 
diff --git a/third_party/silabs/wifi_sdk b/third_party/silabs/wifi_sdk
index 0f0cdcdc249b8d..f84bf6683b124b 160000
--- a/third_party/silabs/wifi_sdk
+++ b/third_party/silabs/wifi_sdk
@@ -1 +1 @@
-Subproject commit 0f0cdcdc249b8de03cb57b5095b290125f42030c
+Subproject commit f84bf6683b124b62475cd456869c6db7c21ae24e