---
title: "W550io module rev 1.1 vs 1.0"
url: "https://maker.wiznet.io/forum/10446"
markdown_url: "https://maker.wiznet.io/forum/10446/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "gfwilliams"
created: "2014-08-12T13:15:07+09:00"
last_activity: "2017-05-04T08:33:37+09:00"
language: "en"
views: 384
replies: 2
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W550io module rev 1.1 vs 1.0

## Question

Asked by gfwilliams on 2014-08-12 in Ethernet Chips.

Hi,

We finally got the WIZ550io rev 1.0 working nicely with Espruino, but now the rev 1.1 board has been released and it doesn’t work.

Does anyone have any idea what the problem is? What changed between revisions?

For starters, even asking it what IP address it has returns 0.0.0.0 and not the usual 192.168.1.2

More info is on this Espruino forum post: [forum.espruino.com/conversations … 75#5875694](http://forum.espruino.com/conversations/1055/?offset=75#5875694)

## Replies

### Reply 1 by jameskim, 2014-08-13

Hello Gordon,

I posted the answer on your espruino forum site.
[forum.espruino.com/conversations … nt11760250](http://forum.espruino.com/conversations/1055/?offset=75#comment11760250)

Thank you.

James.

### Reply 2 by gfwilliams, 2014-08-13

thanks! I’ve just answered on there.

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Source: https://maker.wiznet.io/forum/10446