"Due to the absolute ineptness of Hughes' local contractor, the tech visit that should have been done in December is now put off until April."
Having read your posts, that is indeed sad that the subcontracted installer assigned to your area is not more inline with the likes of gokartergo or Eldorado Satellite.
"Will the tech be able to boost me from download speeds of a whopping 2Mbps to the "up to" speed of 5Mbps? "
The Tech will only be able to address any shortcomings to your installation. Having said that ... there are a number of items within your network, network configuration and operating system settings that will affect your performance.
Beyond that ... and I think you are ... there are aspects related to your installation ..... proper grounding ... and I do mean proper as it applies to modem, power brick, dish reflector, TRIA body and your electrical system all tied to the same common point ... with no ground loops an other "funnies".
You can get "issues" with something as simple as the wind going across the surface of the reflector or transmitter body building up an ionization layer that a 1 watt transmitter is not able to "cut through". Frankly not ALL installers are going to have the experience or understanding of electronics to grasp this on the first pass.
Something as simple as the wrong type of coax being used will do it.
Something as simple as an installer not applying dielectric grease to all exterior connections before weather proofing was done ... if it was done.
You would have gotten a lot further in the Community had you not try to urinate on everyone that could have assisted not Hughes, but YOU to do a double check on this type of stuff.
While I post here in the Community, I have a special place in my heart for sub-standard installers and will go to no end to help (those that want help) users "validate" their installations.
I do have to say, although I think you slammed the door on some areas, that you are on an older satellite (Spaceway-3) and are perhaps on a very congested (read as "saturated") beam ... that Beam being one of 120 beams covering the lower Continental US ... one ..
Hughes has spent millions upon millions of $$$ to address the issue ..... EchoStar 19/J-2 .. but you have to wait for it to come online.
This info has been brought to your attention on several occasions .. and each time it seems to be a whole new thing for you.....
Wait for the new bird to be introduced and likely get a "sweetheart" upgrade or just cancel and be done with it.
You really are starting to sound a little "whinny".
Its like Yoda said in the movie: "Do or Do Not."