I'm still suspicious of a low signal problem. I think the limits the "call center" guy gave you are somewhat optimistic. BTW is that the national center, at 866-532-2598 ? Your FDC is low enough to be questionable IMHO. I suspect there are occasional droops that cause your TA to drop out. Also your Tuner level is kind of low -- -2 to +2 dBm is more typical. Go into DVR diagnostics for a few different channels and note the Signal Strength and SNR. While you're there check RS errors. Are they zero? Signal strength should be 80 or above for most channels.