My system uses 7 tuners- D12 x4, H25 x3, and while some are far away it's been stable for years using the SL5S LNB (5 LNB, 8 tuner). I need to add 3 more. I switched out the LNB to the 3D2RBLNB for up to 13 tuners and everything's messed up now. I even get a signal lock on my meter (even though there's a random missing transponder), yet the satellite receiver won't communicate with the dish- message, and it gets sluggish- hard to operate). I did a reset on all receivers (red button). Maybe 2-4 will work (regardless of distance) but not even 8, much less the 11 that I need. I switched out LNB's (to the 5 LNB SWM reverse band), power supplies, splitters, connectors, Sonora amplifier... Ideas?