Re: Daily Frustrations when being a HTPC enthusiast
I would not say that is the optimal way to run the coax but with the tuners off the inital split should have enough signal. I didn’t see where you have the SD tuners in there.
Ultimately you want to run the cable co line directly into a TAP. A tap is not a splitter, although it is sort of similar in that it provides 2 output legs from 1 input. A splitter divides the power in 2 and the power at each out leg is the same. A tap loses the rated value through the TAP leg but only a small insertion loss through the OUT leg. A DC-9, for example, loses 9dB through the TAP leg, but only ~2dB through the OUT leg. The best way to connect a cable modem would be to have the TAP leg connected to the cable modem and the OUT leg going to the TV distribution system, whether it be a splitter or an amplifier (depends on how many outlets you have).
I run my TAPs out leg into a 15db amp then into a two way splitter that feeds two 8 way splitters and I don’t have any signal issues. Even with 2 of those legs being split again into two feeds for my 2 HDHRs.
I assume you had the latest firmware from SD installed on your tuners and the latest drivers. Both from August I think.
Have you posted this on TheGreenButton also. I imagine your setup is identical to many others.