I have had my MIFI 3G version, for a few years now. I really don't have any complaints with it and have had great internet experience for the entire service. HOWEVER, I have noticed in the last 6 months (maybe more?) that I have had to unplug the power from the card and then plug back in, to reset it. It loses connection or goes "stale" every other day or something close (I haven't kept track, but it's regularly).
Is this a setting? Or if too many devices try to connect at one time, could that "kill it" where it needs reset?