Artnet blocked if ethernet cable is not present in Teensy 4.1 using NativeEthernet

[DrBit]

Hi has anyone experienced the same problem as me?

I'm tring to run a simple artnet sketch and I found that whenthe sketch starts and the ethernet cable is disconected the sketch will hang up at artnet.begin(mac, ip);

when I try instead an example sketch on the nativeEthernet (WebClient.ino) It at least tells me that there is no cable connected.

Initialize Ethernet with DHCP:
Failed to configure Ethernet using DHCP
Ethernet cable is not connected.

but also true it hangs when trying to get fixed IP at this line:

// try to congifure using IP address instead of DHCP:
Ethernet.begin(mac, ip, myDns);

any clue how to overcome this? I need the sketch to run with or without an ethernet cable connected and right now it seems impossible to achieve.

Any help will be very apreciated