I had moved an HR23-700 from one room to another, where an SD DVR had been (R16-300). It started having intermittent "searching for satellite in 2/signal 771 issues" from the get-go, mostly in the morning. And at this time, our main living room DVR (HR22-100) started having the same issues, mostly in the morning. They are both off a Zinwell WB68 switch connected to a Slimline 5 lnb dish. We've tried a few small things (new coax to the HR23 from the wall being one) but the searching for signal is happening more frequently, so this morning I tried disconnecting the H23 from coax altogether to see if it resolved the signal on our HR22 in the living room. Coincidentally, within a few minutes the signal resolved and has been rock solid since. I'd prefer to fix it myself this weekend vs wait for DTV service--could this mean I should upgrade the switch? Thanks for your help!