Ethernet3 + watchdog

[SanSanysch]

Thank you for cool job!!! I read all closed issues, but not found answer.
I use several arduino(micro, nano, mega) + W5500 in my home automation, and discovered:
if include <avr/wdt.h> for watchdog and then eth-client is trying, but can not connect to remote server (web- ftp- mqtt-) (communication problems, packets loss... errors...) - arduino freezes -> watchdog is triggered -> loop reboot! Endlessly! Even if i install wdt_enable(WDTO_8S) - does not help, too little time.
Ethernet.setRtCount(1); Ethernet.getRtTimeOut(50) - it also does not help.
Without watchdog, eth-client wait about 30...33 seconds. I checked it. Version of the library is the last.
You can check on example WebClient.ino
Maybe i 'm doing something wrong? I'm not so strong in programming... but I'm learning!