Hi Hans,
When it does happen, the LED is on solid, with no flashing.? I wait until it is solid before opening WSJT-X.? Then I either get operation as normal or the input bar is either high or low red meaning no audio or too much audio.? Two more power cycles and it is back to mid-level green.? Since following my startup-sequence I have not seen it again.? I will see if I can replicate what causes the problem and post back to you if I do.
73
Evan
AC9TU