Check your network over time for errors. You may have some other component putting errors on the network. We had a N2K humidity sensor in a weather
station go bad and put bad data on the network. Over long periods of time various other instruments would randomly need resetting because of it. Once corrected, the problem went away. The AP24/AC42 autopilot
, however, never was effected.
Do you have a B&G Triton or Triton keypad in the network? These were causing the "no autopilot
computer" problem also, and a software
patch has been release for them.