I have a Device ("Eastron SDM630MCT").
I set up the device without Class C enabled, as I didn't need to send Downlinks.
But now I do.
I enabled Class-C in the Device Profile and sent a Downlink.
The Downlink is not sent immediatly but waits for an Uplink (just like Class A)
A new device joins and Downlinks work as expected
It should be possible to enable Class C after join and for it to work as expected
