There are many things around that may connect via the WiFi of your router, assuming you have one. Your smartphone is one which will preferentially use the WiFi over the cell tower. And typically there are a lot of Apps on your phone that might use it if you allow it.
A few months ago, we replaced one of our DirecTV receivers with a Genie. Movies on demand and other things work via your internet ISP instead of the DirecTV satellite, which in your case is Hughes satellite. My other receiver is connected via RJ45 which never caused a problem, but the new Genie receiver is not located where I have cables installed. And so I enabled its WiFi capability to enable the "good features". I have two ISPs for various reasons, one is Hughes and the other is DSL (which is uncapped and not metered). Fortunately, I only allowed the Genie to connect to the DSL WiFi. After a couple of weeks, I noticed the WiFi light on the DSL router showing a LOT of activity. I tracked it back to ONLY the Genie, which was accessing it almost continuously for its own secret reasons.
After a Google search, I learned that this is a Genie bug which some people discovered after they received a $1500 monthly bill from Verizon for excessive Data utilization.
I could only stop this "unauthorized" WiFi utilization by disabling the WiFi connection, which was not really easy to do, at least from the Genie menu. What I ended up doing is changing the WiFi password on the router and after a day or so, the Genie gave up and disabled its own WiFi feature.
So what to do with your Hughes modem? For one, you can look at the blinking lights on its front panel which should not be blinking much at all except during activity. If they are blinking, then you should try to find out why.
I rarely get 2Mbps. Closer to 1 is normal. I also do not use Hughes for a large upload to Vimeo, as the likelihood of success is not high. Vimeo does not provide for restarting an upload at the failed point.
Hughes is faster than my DSL (10 down, 1 up), and the DSL is not without its own reliability issues. I would burst without internet for two or three days. Hence two ISPs dramatically improves the overall reliability.
It is possible that the 3 satellite providers all use Hughes capacity. So switching might not help.
It is too bad than ANY of the providers DO NOT require the installers to confirm that adequate performance was obtained.
Nickysduck2: unfortunately it is left to you to determine where your download quota is going to. Too many, I think, assume that it is Hughes fault. Maybe, maybe not. As I stare at my DSL modem, the WiFi LED is flashing like crazy (which is not Hughes' fault).