It will be interesting to find out why it is giving you such an erroneous result. I've never seen it do this before.
I'd like you to try something. The next time you do a download speed test at testmy.net, manually choose the 6MB test size. Just do one test with this, and see what happens. The reason I say to choose this size is because the 6MB test is a test size that doesn't automatically kick up to another size if it doesn't last seven seconds like all of the other test sizes do. I'm just curious what will happen. Hopefully what will happen is it will actually do a 6MB test and give you a real result, not giving some ridiculously high result saying that it used the 200MB test.
Again, just try one test with the 6MB size. No more than one test.
I'm at a complete loss as to why it's doing this. Something is definitely VERY wrong. When you do a test, and it gives you this type of result, does your data usage, whether through the status meter, the Hughesnet support center, or Glasswire, show that you actually used at least 200MB of data?
There was a day, shortly after upgrading to Gen4 in Feb, when I did some tests and they were coming up with greatly exaggerated results. I don't remember what the speeds supposedly were, but they were above 100MB. I knew that they were incorrect results, so I deleted them from my test results stats. I wonder if it's something similar.
A video recording of the performing of the test is a great idea.
During these periods of odd test results at testmy.net have you tried the Hughes "in house" test as a crosscheck ?