What version of Roku do you have ?
How are you connecting your Roku to your Hughes system ... wired or wireless ?
If thru a router ..... what brand, model and version ?
If using a router did you change the default username and password for the router's GUI ?
After having changed the above what wireless encryption level did you set up ?
In the router's setup pages did you do ALL of the following:
Turn off "Guest Account" ?
Disable WPS ?
Disable "Remote Access" ?
Disable "QoS" ?
Have you manually updated the routers Firmware ?
After having updated the firmware did you then change the routers settings so that is doesn't "auto-check" periodically ?
Have you disabled all router related "cloud/sync" services ?
Without a wired computer in the house how did you create the "Network" in the first place ?
Please describe your TV:
Brand, Model ?
Have you run through the TV's "cloud/sync" services to insure the set isn't "sharing" data ?
Have you updated the Roku's internal software ?