Have Hopper w/sling and 2 Joey2. Newer home with RG-6, Dish approved. Intermittent Total Signal Loss message on Joey's, Hopper ok. One location is more frequent. Signal level is good, dish has been checked, connections are good, hub has been replaced and the more problematic Joey has been replaced. May work fine for days or weeks, then the problem show up. Diagnostics show excellent connectivity. Sometimes will be restored with reset, other times not. Sometimes will come back by going to guide and channel select. Hopper is never effected. Any thoughts?