Given the two posts I think you should continue and fill in the missing details on your other post at https://www.cnet.com/forums/discussions/mifi-box-problem/
My mifi box was working normally til not long ago tonight. Now there is N/A on the small screen on front of mifi box and I have no internet. Can someone please tell me what this means and how to fix it as I cannot seem to find an answer via Google for some reason?? Thanks for any help in advance.