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If you had done any research you would know...... Dish Network launches nationwide satellite broadband service with ViaSat, Hughes, calls it dishNET http://www.engadget.com/2012/09/27/dish-network-dishnet/ 9/27/2012 ... View more

You didn't say what OS you are using or if you are connected directly to the modem or to a router. If you are going through a router disconnect from it and connect directly to the router, if that fixes the problem then your router is bad or needs to have some settings changed.  Just for maybe a little more info you might look at this article: https://social.technet.microsoft.com/Forums/windows/en-US/eeb84518-903d-46d1-9398-80cf211878d7/windo... ... View more

See if this article helps you at all http://atechjourney.com/dns-server-not-responding-error-fix.html/ ... View more