LoRa TTN RN2483 sometimes hangs

[TD-er]

The RN2483 sometimes does seem to hang.
It is very hard to reproduce, but when it happens, each attempt to send data (Delay queue C018) takes roughly 2 seconds, while it normally would only need 60 msec to process the C018 delay queue.

Another symptom is the message count does not increase.

If there is a reset pin connected, try to reset the node.
This may result in a needed OTAA, which may not always be possible, so there are some drawbacks to this approach.

Maybe performing a serial baud rate sync may also get the RN2483 out of this limbo state?

[TD-er]

The device will report "busy" over and over again.
Forcing a reset (via reset pin) does work to get the unit respond again.
So no need to power cycle.