Stm32H750B-DK TouchGFX + FreeRTOS + LWIP Ping not working ?

[lhwa .1]

Hello, im inquiring after thinking about it for a few days.
please help me.
this is my dev environment 
CMSIS_V2
TouchGFX designer : 4.22
CubeMX : 6.9.0
CubeIDE : 1.13.1
DevKIT : Stm32H750B-DK
i want to do a ping test on this board
i ran it with reference to this example, but it doesn't work.
(https://github.com/GrzHeller/STM32H750B-DK_TouchGFX_FreeRTOS_MQTT_Example)
i don't know what the problem is.

Please help me 

Thank you

[KDJEM.1]

Hello @lhwa .1 ,

I advise you to start by configuring the LWIP. For that I recommend you to follow the steps shared in this FAQ How do I create a project for STM32H7 with Ethernet and LwIP stack working?.

The Goal of this example is to:

• Configure project in STM32CubeMX for STM32H750-Discovery
• Configure FreeRTOS and LwIP middlewares correctly
• Send UDP message periodically (optional)

I hope this help you!

Thank you.

Kaouthar

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[Piranha]

https://community.st.com/t5/embedded-software-mcus/how-to-make-ethernet-and-lwip-working-on-stm32/m-p/261456

[lhwa .1]

thankyou your reply

i tested thing 

ping test OK

UDP Server/Client OK

TCP NG : Assertion "pbuf_free: p->ref > 0" failed at line 753

i don't know why the reason about a week 

[JJhin.1]

In IP address setting give for PC's address in default getway . And try again