---
title: "New software v4.01 details"
url: "https://maker.wiznet.io/forum/9704"
markdown_url: "https://maker.wiznet.io/forum/9704/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "micom"
created: "2013-11-26T23:12:18+09:00"
last_activity: "2017-05-04T08:30:33+09:00"
language: "en"
views: 386
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# New software v4.01 details

## Question

Asked by micom on 2013-11-26 in Serial-to-Ethernet & ConfigTool.

Hi Wiznet
Please describe what ‘Solved link fail problem’ the new WIZ107 TTL software version V4.01 fixes?
Should we upgrade existing devices ?

don

## Replies

### Reply 1 by ywkwon, 2013-11-27

The firmware version 4.01 for WIZ107SR is not released officially yet.
Please wait official release.

---

Source: https://maker.wiznet.io/forum/9704