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I recently purchased a used 811 receiver on e-bay. The auction said the model was "tested and working". When I hooked it up, it immediately gave a smart card error. The error number to the right was 301. When you go to the setup page, the smart card number is S00000...-00 (all zeros)...

I'm a newbie here with some questions I hope someone can help me with. I have a Dish Network system about a year and a half old. It is a dishpro 500 with quad LNBF. I have four receivers (301's) leased from Dish Network. What I need is the ability to expand beyond four receivers (long story...