Thanks for the suggestions so far nothing seems to improve. Its got me Beat! Tried back at the aircraft and It just drops WIFI connection. It just refuses to stay connected. It now also drops connection at home too. I've just about given up with it.
I've just noticed the Red And Green lights on the Pilot Aware transmitter board have stopped flashing alternate now the connection is lost (not PI)
PI Board now just has Red Light and no Green.
Richard
Did it connect properly at home before?
I'd be tempted, if you've got it at home, to plug a monitor into the HDMI socket and see if it gets to a login screen at the end of the boot up.
If it doesn't, get a fresh SD card and install the software onto that, followed by licence key entry.
Then try again. Home router cnnection can be a problem if your router is using the 192.168.1.1 address for itself.