Artnet & DMX conflict

[samcs81]

FPP Version :8.3
Hello, I'm using an Artnet unicast channel output.
After boot of RasPi, the player is sending Artnet in broadcast and DMX in unicast at the same time

When i set the gateway of FPP to 0.0.0.0, restart the network card and set it again to 192.168.2.3(my router) it sends only DMX and works fine on receiver.

Have anyone an idea ?
Thanks a lot (sorry i'm French, my English is poor..)
Greatings from France