---
title: "W5500 unstable"
url: "https://maker.wiznet.io/forum/14499"
markdown_url: "https://maker.wiznet.io/forum/14499/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "stefano"
created: "2022-03-10T13:35:11+09:00"
last_activity: "2022-03-10T14:18:22+09:00"
language: "en"
views: 440
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W5500 unstable

## Question

Asked by stefano on 2022-03-10 in Ethernet Chips.

Hello,

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

![Capture](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/3/30d226fb78fb61737c7786ba84f1641610c92836.png)

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

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Source: https://maker.wiznet.io/forum/14499