AWS_IOT: Error(-28) - Githubissues

ExploreEmbedded / Hornbill-Examples

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AWS_IOT: Error(-28) #20

Open izaton opened 5 years ago

izaton commented 5 years ago

I'm trying to connect to MQTT using ESP32 but I get this error over and over.

Attempting to connect to SSID: //MySSID//
Connected to wifi
E (67286) AWS_IOT: Error(-28) connecting to <xxxxxxxxxxxxx>-ats.iot.eu-central-1.amazonaws.com:8883, 
Trying to reconnect

gmussi commented 5 years ago

I was having the same problem and it turned out it was an authorization error. I enabled logs for CloudWatch in IOT CORE, and could find the authroization errors there.