I am familiar with the Datastorm group. I have posted there on other problems. However, after a discussion with my installer about the problem, I was convinced that it was some connection in all those connections of coax from the dish to the modem. That was until the signal strength would fluctuate widely. Then it was a problem that could be dealt with.
The whole problem is summarized on the Datastorm siter at: http://www.datastormusers.com/ubb/ul.../t/001031.html
I hope the problem is history.