---
title: "MQTT - AWS"
url: "https://maker.wiznet.io/forum/14188"
markdown_url: "https://maker.wiznet.io/forum/14188/md"
type: "Forum topic"
category: "Wireless"
author: "ACR HW ENGINEERING"
created: "2021-03-12T21:26:25+09:00"
last_activity: "2021-03-15T06:13:17+09:00"
language: "en"
views: 446
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# MQTT - AWS

## Question

Asked by ACR HW ENGINEERING on 2021-03-12 in Wireless.

According to your 1.1.1.2 Release version the module should be able to connect to MQTT broker (AWS in this case), when multiple connections are enabled, however I’m NOT able to connect to AWS when i enable multiple connections (AT+CIPMUX=1)!![SS1](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/c/cfa4c6ad6e8f7d4cfc51dca5d467b611a82ac5a3.jpeg)

## Replies

### Reply 1 by viktor, 2021-03-15

Hello,

Unfortunately, in current FW version AWSCON is not running when CIPMUX=1.
Please try with CIPMUX disabled.

---

Source: https://maker.wiznet.io/forum/14188