Short version,
At times the modem will get the command to update its firmware.
Sometimes ... rarely, but it happens, the loading of that firmware will fail, the modem will reboot and go to its "fall back" firmware, and then try to update again, in an endless loop.
That is one scenario ....
It can be proven/disproven by disconnecting the LAN cable from the back of the Hughes modem for a period of time (keep a paper log) and doing "before/after" after screenshots of the most accurate of the usage meters ..... this one:
It can be found here (after logging in):
