No connection to vehicle at first power up

Hi All
My BR2 is giving me problem at power up and QGC indicate “Waiting for vehicle connection”
I allways have to remove power and wait app. 5 s and then reconnect power. Then it will work fine.
I did an update 15 April 2019 on ArduSub and Companion, but did not update QGC.
The current version QGC is 3.2.4 BR rev6. I have used it during the season 2019 without any start up problems. Anyone that have the same problems and have a fix for it ?
Top computer W10.

Best regard Bo