@Amtsop  I am going to reply to my own post.  I have been spending some hours reading on this forum about the problems a lot of people have with the Auto Reset Issue of the MR-600.  Nobody came with a solution.  I am sure the problem happens when it is switching off and on after several hours.  Could it have a memory backup battery like a CR 2032, what looses its voltage ?  I had similar problems with other equipment loosen its programming due to memory back up battery low on voltage.  Did anybody check this ??

  @Amtsop  Thanks for your reply, the full reset happens frequently after switching off and on.  The MR-600 is at a remote location.  Powered bij solar panels and a battery for storage.  A timer controls the on and off times of the Mifi MR-600 and other equipment.  Every day it is on from 1 PM till 6 PM.  It works well fo a few days, maximal a week and then suddenly the complete programming is gone.  I have to fly again from the Netherlands to France to reprogram the RM-600.  I contacted by phone customer support, but they cannot help me with this issue.   I have been reading on this forum,  I am not the only person with this problem.  But nobody came with a solution.