A few weeks ago I was having some minor interruptions in service that would last at least 5 minutes. When I had problems in the past I could have everything back up and running after unplugging my modem and my router for 1 minute. Once the modem was synced I plugged in the router.
As far as the culprit was concerned I had many suggestions, even regarding the cabling and connectors. If you had your system installed through Wild Blue directly or your NRTC (National Rural Telecommunications Coop), chances are that you had a very well trained installer and your problem may very well lie within your home.