Cia402 no connection

Hallo Hakan I supose that You are talking about this commands :sudo systemctl enable ethercat.service
sudo systemctl start ethercat.service
sudo systemctl status ethercat.service
sudo chmod 666 /dev/EtherCAT0
I try them before and also today but with no lack.
But I see that Oriental Motor unit catch a fault whenever I plug rj45 eth.
That situation never happen under twincat.
After summarize everything I wonder what do TwinCat that works properly .
I will try watch history fault in the driver ,maybe it can help.