# Issue connect to losant with IoT Dev Kit

**URL:** <https://forums.losant.com/t/issue-connect-to-losant-with-iot-dev-kit/766>\
**Category:** Bug Report\
**Created:** [February 8, 2018, 3:11pm UTC](https://forums.losant.com/t/issue-connect-to-losant-with-iot-dev-kit/766 "2018-02-08T15:11:21Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![tom](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/tom/32/484_2.png) [@tom](https://forums.losant.com/u/tom)\
**Post date:** [February 8, 2018, 3:11pm UTC](https://forums.losant.com/t/issue-connect-to-losant-with-iot-dev-kit/766/1 "2018-02-08T15:11:21Z")

</div>

Hi

I am playing with the IoT Dev Kits on the ESP8266.

Well everything was working fine a few days ago, but today the kit isn’t connecting.

![image](https://us1.discourse-cdn.com/flex015/uploads/getstructure/original/1X/26fe51b525824a7ef381d1c144a7e3edaa767bcf.png)

I am using the code from here:

[https://docs.losant.com/getting-started/losant-iot-dev-kits/builder-kit/#8-workshop-3-temperature-sensor](https://docs.losant.com/getting-started/losant-iot-dev-kits/builder-kit/#8-workshop-3-temperature-sensor)

I tried to re-upload the code with a new key, still not connecting.

is there an issue with the MQTT broker?

---

<div class="post-metadata">

**Author:** ![Dylan\_Schuster](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/dylan_schuster/32/2850_2.png) [@Dylan\_Schuster](https://forums.losant.com/u/Dylan_Schuster)\
**Post date:** [February 8, 2018, 3:17pm UTC](https://forums.losant.com/t/issue-connect-to-losant-with-iot-dev-kit/766/2 "2018-02-08T15:17:46Z")

</div>

Hi Tom, we’re not having any broker issues on our end. When you attempt to connect, do you see any activity in your application’s [communication log](https://docs.losant.com/applications/overview/#communication-log)?

Not that I think this is the issue you’re having, but you can also test your connection credentials using our [device simulator](https://docs.losant.com/devices/simulator/). Use the same key and secret that is on your device to connect. Behind the scenes the simulator is connecting to the broker as if it were a device just like you’re doing on the ESP8266.

---

<div class="post-metadata">

**Author:** ![tom](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.losant.com/tom/32/484_2.png) [@tom](https://forums.losant.com/u/tom)\
**Post date:** [February 8, 2018, 3:40pm UTC](https://forums.losant.com/t/issue-connect-to-losant-with-iot-dev-kit/766/3 "2018-02-08T15:40:37Z")

</div>

Hi

well it is working now.

I disconnected the unit from the breadboard, and tried a different code set, and it connected.

now I reconnected it to the breadboard and returned to the other code, and it is also working.

Not sure what the issue was, these $3 Chinese ESP8266 are not very stable, so who knows…