Team,
I have a project where I have been testing a Lily-go T-SIM7600 and 4G connection to broker.hivemq.com 1883.
It has been working well but I am trying to chase a issue that randomly occurs. When I ran out of credit the T-SIM7600 stop data which is as expected. A day later added credit and I understand once I add credit the T-SIM7600 should then be able to pass data again.
I had a scenario where the device wouldnt reconnect to broker.hivemq.com and when checking with a MQTT client it could but was at time reconnecting.
Q. Is there a limit for re-connections? My code attempts to check GPRS and then connect to MQTT broker.hivemq.com I see this in the serial logs as expected but it couldnt connect. Waited 1.5hrs and it still had not connected. In the spec’s I see 100 connections, assume that concurrent?
Any advice on how to handle re-connections?
A basic MQTT broker (broker.hivemq.com port 1883)
Shared MQTT platform
100 connections free
10 GB data traffic per month
MQTT 3.1, 3.1.1, 5.0
MQTT over TLS/SSL
Basic authorization rules
Websocket support