Have HR24-100, HR21-100, R22-200, R22-100, R16-300. Worked flawlessly for months after SWM installation. Around the time of the Menu change, began dropping signal - pixellating. Called Tech out... he replaced SWM 3LNB on dish and Power adapter, and made a few adjustments. Better... but still problem. Symptoms best observed by using Signal Strength screen. Signal drops to 0 and then back to 95%+. The symptom travels from one receiver to another. Today it's the Bedroom, last night it was the Basement. There is obviously an imbalance somewhere. Any ideas?