Drop down to a single directly connected computer (as you did above)
Install Net Guard:
»www.cucusoft.com/netguar ··· er_Guide
See what names and amounts it come up with. I like the PDF "statement" function and you can select a readout for a single day.
go here for my list of usage "tools":
»www.ricksyakshack.com/vi ··· um_id=73
Do each of your computers one at a time to "proof then out".
Once you have done that and concluded that you have an "inflation" issue on the Hughes end read and Register with in this topic on the Hughes forum:
»community.myhughesnet.co ··· ed_usage