---
title: "Serial COM lost"
url: "https://maker.wiznet.io/forum/14510"
markdown_url: "https://maker.wiznet.io/forum/14510/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "PierreM"
created: "2022-03-23T08:33:38+09:00"
last_activity: "2022-03-23T08:33:38+09:00"
language: "en"
views: 351
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Serial COM lost

## Question

Asked by PierreM on 2022-03-23 in Serial-to-Ethernet & ConfigTool.

I used the ConfigTool for a WIZ108SR successfully.
The purpose was to connect the module to a Modbus serial server.
And that is working.

Sometimes, when I re-connect my laptop, the TCP/IP side seems to still work but the serial side sends only time-outs…

I can solve this by opening the configTool and by just clicking on SETTING icon.!!

Any idea?
Pierre

---

Source: https://maker.wiznet.io/forum/14510