Hello,
I am working with a thingy9160 to connect to an MQTT broker using TLS.
I have run into an issue where the MQTT connection is disconnected with error code #XMQTTEVT: 1,-128.
This sometimes happens within a few minutes and sometimes after hours. It seems to be related to the keepalive time. If I have the keep a live set to 60 seconds it stays connected longer than if it is set to 10 seconds. The signal strength and quality are both good when this happens. Could this be related to some power saving timing on the LTE end?
I captured a modem trace of the issue:
Any help is appreciated.