We are using v0.4.0 lte_ble_gateway example running on an nRF9160-DK (0.8.5)
We are successfully pushing data from the UART on the nRF52840 to the nRF9160
Also managed to connect to AWS MQTT and successfully gather the published data to present to our UI.
However we are experiencing some trouble where after (usually) an extended period of many hours whereby the nRF9160 seems to think it's connected to AWS, whereas by looking at the logs we have created on AWS we know that the nRF9160 is most certainly disconnected.
This constitutes a complete failure of our system.
A reset of the nRF9160 fixes the problem immediately.
We have currently implemented a sys_reboot every 30 minutes as a work around, which is most certainly not ideal.
It would be fantastic if someone could help us solve this mystery, else it will mean proceeding in the dark with already complex code.
