---
title: "WIZFI310 / Multiple connection feature"
url: "https://maker.wiznet.io/forum/12488"
markdown_url: "https://maker.wiznet.io/forum/12488/md"
type: "Forum topic"
category: "Wireless"
author: "phil31"
created: "2017-09-23T09:30:27+09:00"
last_activity: "2018-01-25T23:56:40+09:00"
language: "en"
views: 1121
replies: 4
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WIZFI310 / Multiple connection feature

## Question

Asked by phil31 on 2017-09-23 in Wireless.

Dear team,

please can you let me if multiple connection feature is available with the 310 module ?
i mean REALY and OFFICIALY available/working, not as with the WIZFI250 !

W310 as TCP server (web server)
==> multiple clients to the same module, on same TCP port !

is there any document which describe all differences between the 250 and 310 AT commands ?

thanks, regards

## Replies

### Reply 1 by irina, 2017-10-12

Hi, phil31

I am aplogize for late.

![](https://avatars.discourse-cdn.com/v4/letter/p/4af34b/48.png) phil31:

> W310 as TCP server (web server)
>
> ==> multiple clients to the same module, on same TCP port !

→ WizFi310(as TCP server) supports multi-connection .

![](https://avatars.discourse-cdn.com/v4/letter/p/4af34b/48.png) phil31:

> is there any document which describe all differences between the 250 and 310 AT commands ?

→ There is no document that explains differences between the 250 and 310 AT commands.
We just provide each of documents.

Thanks,

### Reply 2 by phil31, 2017-10-12

you claim that the W310 is firmware compatible with the W250.
so if i plug a 310 in our actual W250 board, all need to work exactly same ?

about multiple connection, where it is explain in the “commands list” ???

thanks

### Reply 3 by phil31, 2018-01-25 (in reply to reply 2)

so Tom … any updated document which explain the multi-connection feature please ?

### Reply 4 by irina, 2018-01-25

Hi, phil31 ! ![:slight_smile:](https://emoji.discourse-cdn.com/twitter/slight_smile.png?v=12)

I tested multi-connection with a WizFi310.

I operate a WizFi310 as a TCP server and my PC connects to WizFi310 as a TCP client.

I attached a capture below.

This is WizFi310 Serial Capture.
As you can see, WizFi310 receive a message from 4 TCP client.

[![image](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/7/7e95ae3aadb5585531baa8a345ab4ba36e50434b.png) image955×704 23.2 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/7/7e95ae3aadb5585531baa8a345ab4ba36e50434b.png)

And this is PC( 4 TCP client) capture.

[![%EC%BA%A1%EC%B2%98](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/2/2e5d7472e1d49119d123e0af3bb134d2eeb24bc7.PNG) %EC%BA%A1%EC%B2%981779×1027 241 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/2/2e5d7472e1d49119d123e0af3bb134d2eeb24bc7.PNG)

I hope it will be helpful.

Thanks,

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Source: https://maker.wiznet.io/forum/12488