First test this morning: PC start up from completely unpowered. Checked if the Arduino was detected in the device manager (it was) and then started MF Connector: no Modules.
So Windows recognised the board but MF didn't.
And Pizman, yes, you are right of course with the start/restart advise for MF connector. I already did that (I didn't mention it) but it makes no difference.
I did already several tests with the power: Board USB powered (1. Constantly on, even when the PC is off, 2: Switch the power completely off), External power 9V (Board is the only consumer for that PSU). Several tests to see if the moment of switching the power on for the board makes some difference but the result is still the same.
But I have some (probably) important information. Although in the Status Info of MF connector it is stated that no modules are detected (yellow triangle with !) I also looked in Settings/Mobiflight Modules. There an unknown module is mentioned and when I selected this module I got the following info:
Name: Default; Firmware: n/a, Port: Com14, Serial: n/a, Type: Arduino Mega. For me, as a newbie, it seems that the Arduino is detected but not as a Mobiboard.
When I reconnect the board to the USB the board is recognized by MF connector (Status info has a Green V for Modules) and the Mobiflight Modules window contains the following info:
Name: Mobiflight1 Pedestal, Firmware: 1.7.3, Port: COM14, Serial: SN-302-b57, Type: Mobiflight Mega.
Some additional requested info:
The reason I am opening the pedestal is that this is a quicker way for me to reconnect the Arduino then to go to the other side of the USB connection which is somewhere "down-under" and my body is no longer as flexible as 50 years ago, so.......
At this moment it is the only connected Arduino (more are in the planning and ordered). As soon I have the time I will connect another spare Mega (other manufacturer) I have to see if that one is working correct.
Thanks for all the advises.