I want my MIFI 2200 to require a password be entered each time it is accessed. Can someone tell me how to set this. I have others in the house, who also have wireless internet access, but because of their gaming they have overages, so I want to prevent them from accessing mine. I know they have simply by the fact that in 5 days I allegedly used 3 G's? NO WAY! Especially since I haven't used that much in an entire month since having the device! Anyway, if someone can help me, I would certainly appreciate it.