Takeoff : 23-Aug-17 2117 Z Aircraft : 5305 ARWO : ash Flight hours : 10.00 Mission ID : 0909A HARVEY Comments : 0909A HARVEY Equipment : Computer lost connection to avionics bus, had to reboot to get data back. VDM froze for last two fixes, believe it is a glitch with the code, point was 21 deg 60' and should have been 22 deg - this caused the VDM to freeze MM up every time it was opened. Had to do VDMs by hand with raw code. DDPH kept running through MABC, had to power it off every time because it would get stuck.