Derk Getkate

My distronic will disengage when encountering fiber optics and/or other radio wave which is normal at times the screen might appear and state distronic is available again,but often the vehicle has to be stopped to reset the computer.In certain commute circles this occurs2-3 times in a total distance of 100km,on another frequent route of 150-200km we have to stop 3 out of 4 times.This is a very annoying problem,and bothersome for people in their mid 70's.We had visions of apremium car in our old age,and would dearly like some help in this regard,thanks Derk Getkate