W5100 based shield on Uno stop working after a while

[lathoub]

W5100 based Ethernet shield work fine at the start, but after a while (couple of minutes) the packets do not arrive anymore (or are not received anymore).
The same code works fine on a ESP32.

@alf45tar - can you test on another Ethernet based shield?

[alf45tar]

Sorry but I am not using any ethernet shield. I started testing on ESP32.

[lathoub]

Good - ESP32 works just fine.

[lathoub]

I have raised the issue here