com.aws.greengrass.mqttclient.AwsIotMqttClient: Unable to connect to AWS IoT Core

My Green Grass V2 core device (2.5.3 and Running on Rpi3) cannot connect to AWS IoT Core using company network. If i am using 4G connection, it is able to connect it without any issue. Strange thing is that if I use Python script with same IoT core endpoint, cert and key to connect and publish MQTT message at company network, it is working fine. My question is GG device provisioning services use different end point or any means different than python script? by the way, I have changed greengrassDataPlanePort from "8443" to "443" too. Still unable to connect.

주제

사물 인터넷(IoT)

태그

AWS IoT Greengrass AWS IoT Core

언어

English

KAUNG 3M

질문됨 2년 전1534회 조회

1개 답변

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Hello, The problem that you are having is that you changed the greengrassDataPlanePort, while that is necessary in your case, it isn't not the only change you need to make. You must also change the MQTT port which is used. Please see our documentation here for how to configure MQTT to use port 443. https://docs.aws.amazon.com/greengrass/v2/developerguide/configure-greengrass-core-v2.html#configure-alpn-network-proxy

전문가

MichaelDombrowski-AWS

답변함 2년 전

KAUNG 3M
2년 전
Thank you so much Michael. One more question if you do not mind. Is there anyway to change it locally without connecting to online?
MichaelDombrowski-AWS 전문가
2년 전
In the same way you set the dataplane port, you may create a configuration file which contains the necessary configuration underneath the aws.greengrass.Nucleus key.

services: aws.greengrass.Nucleus: configuration: mqtt: port: 443

You can also have a look at our manual installation instructions which have a bit more information about creating a local config file and using that. https://docs.aws.amazon.com/greengrass/v2/developerguide/manual-installation.html#:~:text=in%20an%20HSM.-,Install%20the%20AWS%20IoT%20Greengrass%20Core%20software%20with%20private%20key%20and%20certificate%20files,-Install%20the%20AWS
KAUNG 3M
2년 전
It is working now after i changed both mqtt and greengrassDataPlanePort to 443. Thank you so much Michael.

com.aws.greengrass.mqttclient.AwsIotMqttClient: Unable to connect to AWS IoT Core

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