Click on #3 in the SCC to access the modems advanced pages:
Then from the menu on the left:
Expand "General", select "User Router Preference.
From the drop down arrow change from DEFAULT to ALT ROUTER, click to SUBMIT button:
At this point I would, in this order do the following.
Shut down the computer
Remove AC power from your router
Remove AC power from the Hughes modem
Restore AC power to the Hughes modem and let if fully boot up
Then ... restore AC power to the router .. and let it fully boot up.
Then ... turn on the computer.
The above procedure will force a new "lease" to be made, in order, of all devices.