said by vensus011236:Okay so I was able to remove my 3 way splitter that the last comcast tech was using to drop our signal instead of a -6db atteuner, picture above is what it was with the splitter and what it is now with the -6db piece added on the line instead. I'm assuming it's still all in good range not too low not too high, etc.
Im not an expert but you have a 6db swing going on from channel 14 to channel 8. Thats a large difference. Might actually have a line issue. Maybe someone else can jump in. Also your snr on the 3 channels that are low are barely in the recommended spec. You for sure want 35 db snr or higher. 37 would be ideal. The fact that you habe many channels at 37 snr and then you have those 3 channels around the 600mhz frequency very close to 35 snr tells me you likely have leakage somewhere.
Do you have the capability to plug your modem directly into the termination point on your residence? Just to rule out inside wiring? I would be curious the difference in snr and power levels.