Originally Posted by Xn0r
I had something like that happen to me once. I had a three way splitter on my SD comcast box and going to my VCR and TV for years, and never had an issue. Then one day I couldn't get half the channels. I took the splitter off and bingo it started working again.
I'm still not sure what happened. I'm not sure if my splitter just "went bad" (is that possible? It wasn't an amp, just a simple splitter), or whether perhaps Comcast switched to wider bandwidth on the cable that was more than the splitter covered.
Anyway, that was the "cure". Nowadays, I'm back on a splitter, a two way feeding my Moto DCH-3200 STB and my Tivo HD. I made sure I got one that went to 1000mhz (labeled as a "digital cable/satellite" capable) so that I should be good for a long long time. Unless this one also decides to die.
You may want to try a new splitter?
EDIT: could it also possibly be because they're working on your system for the WoM stuff?
Tried a new splitter, but my TV is connected to a totally different splitter than my computer. One's in the living room, one's in my work room and both have a wall co-ax. The one in my room splits to the cable modem.
I have not touched anything for years even and I've always been able to watch my College Football on Saturdays no problem. Recently it's just gotten bad.
New splitter is one from Monoprice that goes 5-2400mhz as recommended on DSLReports. Signal looks just as bad.
Without splitter is Down: -11dBmv Up: 48dBmv. I understand anything out of -10 to +10 for down is terrible from DSL Reports. So without splitter is certainly better, but nowhere near great still.
I can't really provide numbers otherwise other than that watching TV was meh. I'm gonna call Comcast I guess... ><<br />
The unfortunate thing is I tried speaking with them online and they gave me crap about using the DAMN BOX. I don't want to use their damn box because I want my local HD (I'm on digital starter btw so I don't get the nice HDMI boxes, and I don't want to pay more just yet).