NativeEthernet with the Teensy 4.1 and a fixed IP does not work


Active member
Hai All,

Obtaining an IP via DHCP works fine, when an IP is fixed this does not work. The IP can then also not be pinged from a computer. When the IP is obtained from a DHCP server, pinging works fine.

I use Arduino 1.8.19 and Teensyduino 1.59
With NativeEthernet 1.0.5 which is in Teensyduino 1.59.

It does work fine with older versions of Arduino and Teensyduino.

I have tried several examples including this one with the same problem: " Advanced Chat Server".

Thanks in advance for the tips.
i Suggest you use QNEthernet instead of NativeEthernet. NativeEthernet is not being actively maintained at the moment, QNEthernet certainly is.
See this thread.