downsizingnow48
Elite Member
I use a verizon USB727 modem plugged into Cradlepoint wireless router. About five years. On all the time. Knock on wood no unexplained data usage. Functionally I think this is similar to the newer personal hotspots.
Eddie.. I had this problem with my Wi Fi too...It turned out to be that a neighbor was using it without knowing it..I installed a password and the problem was ended.
I changed the password and nobody else had it. Only Karen is here and she didn't change it on any of her devices. When she turns on her Ipad, it shows that there is wifi available. When I changed the email, and turned off the MiFi device, she saw it go offline on her Ipad just like I saw it go offline on my desktop. She wasn't using her Ipad to be online, she was reading an ebook. When she went to read her ebook later on in the afternoon, she said the MiFi was back on again. I didn't turn it on, I wasn't anywhere near it.
So far we have not changed access codes to use it on anything but the desktop. My goal is to see how much the usage changes by disconnecting the charging cord and removing the battery.
Eddie
You might try these recommendations.
5 Tips for Keeping Your Cell Phone Data Usage In Check [Infographic]
Go to data usage and you will see what is using data and how much.