The last couple of weeks we have seen an error code 793 on a couple of channels. Dish says they do not know what it is. Does anyone know what it may mean or where to find some info about it? This code is happening on different receivers (so far 211/381's) and accounts. (PCO contracted with Dish) We replaced a receiver the first time we saw it, but just wanting to know if there is a fix, if this is a problem with the newer receivers, or if we have to change out a receiver every time. This is in an AL area.