I have been using this hotspot without problem other than every now and then it would not register the WiFi unless I rebooted. Yesterday the hotspot was dead and I had to use it as a WWAN attached to one of my laptops. Now it will not show or detect the hotspot modem wirelessly at all. If I plug it in it works fine but as soon as I unplug it the software stops detecting it. I even tried uninstalling the software and reinstalling it. Still no WiFi...we run 3 laptops off of it so this is a big problem! Any ideas what is going on?