---
title: "WIZ550io CW_GET_PHYLINK always up"
url: "https://maker.wiznet.io/forum/13334"
markdown_url: "https://maker.wiznet.io/forum/13334/md"
type: "Forum topic"
category: "IO Modules"
author: "bilhew8078"
created: "2019-05-23T22:28:14+09:00"
last_activity: "2019-05-23T22:28:14+09:00"
language: "en"
views: 631
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WIZ550io CW_GET_PHYLINK always up

## Question

Asked by bilhew8078 on 2019-05-23 in IO Modules.

I am using a WIZ550io V1.1 and even with the Ethernet cable unplugged the PHY configuration register shows the link as up. I have tried directly reading the register and using the ctlwizchip() utility function and both consistently return a value of 0x01 whether the cable is connected or not. When the cable is connected I can ping the device at any address I set, so I know I am properly communicating with the w5500. Any ideas???

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Source: https://maker.wiznet.io/forum/13334