Since the last two software updates my HR-21Pro has needed RBR nearly every day. The unit is kept in off/standby and only powered on when in use. It is connected to a wired network with the second back panel RJ-45 connection being used/shared by another device. It is controlled via RS-232 with a USB to RS-232 adapter (IO Gear). When it locks up and needs to be rest it is always reporting the last viewed channel as a four digit number such as 1010 or 9898. Unit will be no reponsive to IR, RS-232, or front panel controls. RBR always will fix it. I rarely use any of the network features and wonder if that part needs to be diconnected in order to eliminate the ethernet jacks as a contributing factor. Equipment is rack mounted and well ventilated. Only a single RG-6 with BBC from the dish is used and I only use a single tuner (1) no SWMS. I hope this is enough info.