W5500 unstable

Hello,

I have a problem with my nrf5340 in combination with the w5500. I have everything working but the connection is not stable.

Capture

I use the w5500 in MACRAW mode. It is connected to a busy network with many arp broadcast messages. When i send TCP messages it behaves the same as these ping messages. Does anyone have a idea how i can improve this situation?

thanks in advance,
Stefano