We have two THR22s in our condo in a largish (50 unit) high-rise condo building, connected with a splitter (a DirecTV "green badge" splitter) from the main building drop. There are a series of utlity closets that have the muxes to which only the building maintainers have acces. It's been working this was for about 4 years. We had the same units in a house for a couple of years before that. A couple of days ago, we started to have signal quality problems, and eventually total loss of signal on some transponders on both units. Others in the building do not seem to be affected. Doing some simple troubleshooting, it seems that the signal loss only occurs when both THR22s are connected to the splitter. Removing either allows the other to get great signals (almost all 90+). Both units fail, and both units work correctly when connected singly. I got a new splitter (just in case) and the units pass or fail the same way. I happened to get a four-port, and tried putting both units on the non-power pass ports; same results. The local installers are, I believe, not well-trained; they state with some certainty that you can't have two receivers off one drop on a splitter: that somehow the control signals would have to go through the power-pass port. That's nuts, of course, but that's who has the contract to maintain the building. Any ideas on this? When I disconnect the cable from one unit for a while (several hours) and then reconnect it, both units will work for a while (a couple of hours), and then degrade until the LOS. We really prefer the TiVo interface so we are hesitant to switch to Genie; DirecTV is subsidized so moving to cable is a lot more expensive. Thanks!