---
title: "WIZ107 not showing on Configuration Tool"
url: "https://maker.wiznet.io/forum/11466"
markdown_url: "https://maker.wiznet.io/forum/11466/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "goranpop"
created: "2015-11-18T09:54:22+09:00"
last_activity: "2017-05-04T08:37:34+09:00"
language: "en"
views: 859
replies: 2
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WIZ107 not showing on Configuration Tool

## Question

Asked by goranpop on 2015-11-18 in Serial-to-Ethernet & ConfigTool.

Hi,

I’ve tried to activate newly purchased WIZ107SR with Configuration Tool ver 1.4.4.1.

Search window:
10.0.1.60 50001

After search was done, at the bottom of Configuration Tool window:
Find: 0 devices None devices selected

After a while, a popup window shows:
“A connection failed because the connected party did not
properly respond after a period of time, or established connection failed because connected host
has failed to respond 10.0.1.60:50001”

Hardware: Pull up resistors 10K on pins 4,6,8
LED on pin 8

Environment: Windows7 (x64), firewall is OFF, no virtual box.

Indicators:
When ethernet cable is connected, LEDs on RJ45: One is steady ON, other is blinking irregularly. LED on pin 8 is OFF.
When ethernet cable disconnected, both RJ45 LEDs OFF, LED on pin 8 blinks at 1sec rate.

Supply voltage is 3.0V.

What can I do?

It seems a very nice device.

Best regards
Goran

## Replies

### Reply 1 by goranpop, 2015-11-18

Hi again,

I managed to detect both my WIZ107 and WIZ108 by using UDP.
It is explained in WIZ107SR_UM_V171E.pdf
while in WIZ107_108SR_AN_S2E-Programming-Guide_V100E.pdf a TCP seemed the only option.

May this help the others

Goran

### Reply 2 by irina, 2015-11-20

Hi, Goran.
Thank you for sharing your problem solving experiences.
Thanks.

---

Source: https://maker.wiznet.io/forum/11466