Recently replaced a defective vip211 with same I assume refurbished from DISH. It is connected to the same external hard drive as the previous receiver. PROBLEM: Twice now the receiver has stopped responding to the remote. At first I thought the remote address was inadvertently changed. Took the batteries out of the remote, punched all the buttons...still no luck. The remote wouldn't channel up-down, respond to menu, zip-nothing. I discovered using the receivers front buttons, up-down, menu, etc., once that was done and the receiver responded -- the remote worked. Any ideas? Is this receiver also in the defective column? Thanks for any input.