I uploaded the example (7669880) on my STM32F429ZI board and the program works correctly but in some cases it gives me problems.
In the example program (examples / WebClientFreeRTOS / WebClientFreeRTOS.ino) I have commented out line 78 so that when I get the response from google on the serial monitor I am printing "disconnecting." in loop.
Specifically, if I always leave the network cable connected on the serial monitor I find myself in a "disconnecting" loop. while if I try to disconnect and reconnect the cable the program crashes. In short, when I connect the network cable to the card powered on the serial monitor I no longer find the word "disconnecting" in loop.
Sorry for the grammar but unfortunately English is not my language.

MCU: STM32F429ZI
STM32duino core: v2.2.0
STM32duinoFreeRTOS: v10.3.1
STM32Ethernet: 1.3.0
STM32duino LwIP: 2.1.2