As stated before, my config is a brand new RPI 3B with Max2Play 2.49 and an Amp2 board.
The disk image is writen to a fresh Sandisk 8Go SD card.
And the RPI was connected to my network and, as a consequence, to Internet.
In my case, the two key facts I find out are that the boot process is flawless when I remove :
– either the Amp2 board,
– or the fixed IP.
Of course, I choosed the second solution.
One last thing : I detected this issue on October, 27th, precisely the day when France moved to winter time. I don’t know whether this be related to the time synchro issue cause I didn’t move further on analyzing the case.