diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/RTE/Network_Library/mongoose_custom.h b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/RTE/Network_Library/mongoose_custom.h
index 31a9cab8..8b5ea8b5 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/RTE/Network_Library/mongoose_custom.h
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-baremetal/RTE/Network_Library/mongoose_custom.h
@@ -13,6 +13,7 @@
 
 // <q> Enable builtin TCP/IP stack
 #define MG_ENABLE_TCPIP 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 
 // <h> Network Drivers for builtin TCP/IP stack
 // <q> Enable STM23Fxx Ethernet driver
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/RTE/Network_Library/mongoose_custom.h b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/RTE/Network_Library/mongoose_custom.h
index 390a6157..95cfe0dc 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/RTE/Network_Library/mongoose_custom.h
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos/RTE/Network_Library/mongoose_custom.h
@@ -13,6 +13,7 @@
 
 // <q> Enable builtin TCP/IP stack
 #define MG_ENABLE_TCPIP 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 
 // <h> Network Drivers for builtin TCP/IP stack
 // <q> Enable STM23Fxx Ethernet driver
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/RTE/Network_Library/mongoose_custom.h b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/RTE/Network_Library/mongoose_custom.h
index 26fb7071..e6d27be6 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/RTE/Network_Library/mongoose_custom.h
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-freertos_cmsis2/RTE/Network_Library/mongoose_custom.h
@@ -13,6 +13,7 @@
 
 // <q> Enable builtin TCP/IP stack
 #define MG_ENABLE_TCPIP 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 
 // <h> Network Drivers for builtin TCP/IP stack
 // <q> Enable STM23Fxx Ethernet driver
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/RTE/Network_Library/mongoose_custom.h b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/RTE/Network_Library/mongoose_custom.h
index e5a681c1..4085630a 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/RTE/Network_Library/mongoose_custom.h
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx/RTE/Network_Library/mongoose_custom.h
@@ -13,6 +13,7 @@
 
 // <q> Enable builtin TCP/IP stack
 #define MG_ENABLE_TCPIP 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 
 // <h> Network Drivers for builtin TCP/IP stack
 // <q> Enable STM23Fxx Ethernet driver
diff --git a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/RTE/Network_Library/mongoose_custom.h b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/RTE/Network_Library/mongoose_custom.h
index 26fb7071..e6d27be6 100644
--- a/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/RTE/Network_Library/mongoose_custom.h
+++ b/extra/cmsis-pack/Boards/ST/NUCLEO-F746ZG/nucleo-f746zg-keil-rtx5/RTE/Network_Library/mongoose_custom.h
@@ -13,6 +13,7 @@
 
 // <q> Enable builtin TCP/IP stack
 #define MG_ENABLE_TCPIP 1
+#define MG_ENABLE_TCPIP_DRIVER_INIT 0
 
 // <h> Network Drivers for builtin TCP/IP stack
 // <q> Enable STM23Fxx Ethernet driver