---
title: "WizFi250 error"
url: "https://maker.wiznet.io/forum/12909"
markdown_url: "https://maker.wiznet.io/forum/12909/md"
type: "Forum topic"
category: "Wireless"
author: "Aldo Lanzavecchia FA"
created: "2018-05-22T23:27:29+09:00"
last_activity: "2018-05-22T23:27:29+09:00"
language: "en"
views: 651
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WizFi250 error

## Question

Asked by Aldo Lanzavecchia FA on 2018-05-22 in Wireless.

Dear

We want to connect 2 WizFi250 boards and we can not achieve it

Stage:
Configure 2 Wi-Fi boards as one Server and another as a client.

Module A: AP mode, 192.168.12.1, TCP Server,
Module B: Station mode, 192.168.12.2, TCP Client

[Configurations in Module A]
AT + WSET = 1, WizFi250_AP
AT + WSEC = 1, WPA2,12345678
AT + WNET = 0.192.168.12.1,255.255.255.0,192.168.12.1
AT + WJOIN

[Configurations in Module B]
AT + WSET = 0, WizFi250_AP
AT + WSEC = 0, WPA2,12345678
AT + WNET = 0.192.168.12.2.255.255.255.0,192.168.12.1

AT + WJOIN <----------------------------------- In the client module, this is where the fault is generated.

At the time of doing the WJOIN of module B, in Module A the WJOIN was already done and it is in listening mode.

Both plates had a Factory Reset at the time of the practice.

What is missing from us or where is the error?

---

Source: https://maker.wiznet.io/forum/12909