The posing is now almost year later and unresolved. I hope this is current enough to get attention. I just got a unit, and that password of LTEFemto + last 4 digits of the device MAC ID does not work for me. I've reset the thing twice. So if anyone has a suggestion, please post. Otherwise the thing works and tech support's attitude is "hey it's working. What's the problem?" Well, there are settings there, presumably ones to close the system which by default is open, but what the hey, it's working I guess I'm supposed to be comfortable with.