Letmein clients sometimes "die"

[WillNilges]

Sometimes, the letmein clients will become unresponsive, with all LEDs lighting up. This can be fixed with a simple reboot.

[aln730]

Rebooting the module every time is not a solution. I suspect that when the module enters sleep mode, the MQTT client stops sending heartbeats. It also doesn’t seem to be a logging issue anymore (though I’m not sure what was wrong with it before). I’ll look into it soon.