You might try using Google's DNS servers rather than Hughesnet's (found in your router interface:
After doing so, in this order do the following:
#1: Power of the Hughes modem\
#2: Power off the router
#3: open a command prompt and perform a IPCONFIG /FLUSH
(see here for details) http://www.wikihow.com/Flush-DNS
#4: Power up Modem and let it boot up completely before proceeding
#5: Power up the Router and let it boot up completely before proceeding
#6: Open a browser and see if the issue is resolved.