The screenshots you have posted are "History" displays.
What is needed are screenshots of your "fuel gauge" at tow points. Just at the time of disconnect and immediately at the point of reconnect along with the times of those occurrences.
To clarify, there are THREE "usage meters" available to you:
#1: The download Status Meter
The Download Status Meter is a utility that is available for download from the myAccount page.
Once downloaded and installed it will reside on your computer systray at the lower right corner.
It displays the amount of data that you have used up to the point of the screenshot.
It has a "resolution" of .1 GB (100 MB) and will round to the nearest 50 MB
#2: SCC usage meter:
The SCC meter resides inside your modem. It displays data used and data remaining in all three "data buckets": Anytime (8am to 2am), Bonus Bytes (2am to 8am) and Token Data.
The SCC meter may be accessed by entering 192.168.0.1 into your browsers address bar.
#3: myAccount Usage Meter:
This meter is found after logging in at: http://my.hughesnet.com/myaccount
This is the most accurate of the three meters, reading down to a single MB but it does require that you have a browser actively connected to the internet and data can be used while logging in
All of the above meters are acceptable but #1, the Download Status Meter is likely the most convenient.
This is a graphic depicting the Modem Isolation Test:
What it is asking you to do is to document (through a screenshot) the amount of "fuel" you have remaining and to note the exact time:
Disconnect 1/17/17 at 3:10PM
And at that time disconnect the Modems LAN cable while at the same time leaving the modem powered up.
That will be the cable with the red arrow on this rear view of the modem:
Leave the LAN Ethernet cable disconnected for any period that is convent for you. Perhaps overnight?
You have to this point taken evidence of your remaining "fuel" in the form of MB, noted the time and made it impossible for any of your networked equipment to access the Internet and use data.
The modem is "isolated" any "fuel burn" has to be the result of the Modem .. other than a small amount due to "reporting lag".
And the end of the isolation period reconnect the LAN Ethernet cable to the rear of the modem and immediately open the Download Status Meter and take another screenshot and again note the exact time:
Reconnect 1/17/17 at 11:59PM:
You would then compare one "fuel" reading to the other.
If data was used other than a minor amount due to meter catch up then you need to promptly post both screenshots as well as the disconnect/reconnect time here in your topic.
It is important that you leave the modem powered up as the Mods will need to validate your disconnect period by accessing you modems internal logs.