Aws-mqtt-websockets device stopped working about aws-mqtt-websockets HOT 3 OPEN

strange.... my devices are working normally. have you reviewed the permission in the user's policy?

from aws-mqtt-websockets.

Exactly the same thing happened to me. My code was working by the end May 2018 and I left it there.
After 3 months without doing any modification to my sketch or lib setup whatsoever, I gave it another go but got all the fancy error messages mentioned here to my frustration.
After fishing around for a remedy and trying many things that has been suggested here, finally the solution appeared in my case.
I had upgraded all the dependency libs in this repo but that didn't work.
Finally after upgrading my Arduino ESP8266 core lib to 2.4.2 from 2.3.0, everything started to work now.
I think both the lib and ESP8266 core upgrades did the job.
FYI

from aws-mqtt-websockets.

I was getting a similar problem, and it looks like AWS might have changed their message that was being sent on update/accepted. PubSubClient has a limit of 128 characters by default, and it looks like it doesn't like it when a message is longer than that. Putting #define MQTT_MAX_PACKET_SIZE 512 at the top before the #include <PubSubClient.h> should make life a bit easier.

The default message from this repo causes a response of 193 characters from AWS.

from aws-mqtt-websockets.