https://forge.codesys.com/forge/talk/Engineering/thread/1ca347ad17/2022-11-21T19:14:56.580000ZRecent posts to AWSIoTClient "TCP_READ_ERROR"2022-11-21T19:14:56.580000Z2022-11-21T19:14:56.580000Ztrenthttps://forge.codesys.com/u/trent/https://forge.codesys.com7ced6747fae03d58e48c19877264230074c5b27b

<div class="markdown_content"><p>Hi all,<br/> I have a raspberry pi deployed in the field which is sending MQTT data to AWS using the AWS IoT Core Client SL (1.1.0.0) library.</p> <p>For most of the time, this seems to work quite well, but occasionally, the AWSIotClient_0.eError gets a value of "2" which indicates a TCP_READ_ERROR.</p> <p>I am trying to understand what makes this happen, and if there is anything I can do to mitigate, was wondering if anyone has come across this before and if so, what they did to rectify?</p> <p>The occurrence of this is quite random, the pi can run for weeks without the error occurring, other times it can run for a couple of days before I see it.</p> <p>The easiest way I have found to fix it so far is just to remotely reboot the Raspberry Pi, but was wondering if anyone knew an easy way to implement a fix that could just clear this error and continue communicating if it occurs in future? (Or a way to stop it happening in the first place?)</p> <p>Regards,<br/> Trent</p></div>