Hi Alan,
I understand that the problem is intermittent. Would you mind help records when it is working, and when it is not working by date and time? So, we can specifically look in to that. It seems like a few people have the same problem too. If it is in this case, we can identify which time and in what particular region that the problem it is occurred. Thank you for your time and understanding.
If therer is any other questions or concerns regarding to this problem, please feel free to let me know.
Amy