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Low signal levels
Sorry for the long post, but I wanted to include the whole story.
A few months back, I was having an issue of the internet disconnecting for hours at a time, mostly overnight. I would get a bunch of T3 timeouts, and lose upstream lock. On occasion, I was also getting pixilation on the TV, and the inability to connect with some of the channels (SDV channels?). It seemed to be related to cold temperatures and/or snow.
First truck roll, the tech came in, checked everything in-house, and replaced a couple of splitters 'just because'. Did not resolve the issue. Spectrum did set up a monitor on the connection and confirmed my reports of loss of connectivity. A second truck roll, and the tech basically repeated all the tests the first tech did, and found nothing.
I have a strong background in electronics (35 years RF and Analog engineering for a major medical imaging company) and suggested to the tech that my interpretation of the symptoms I was seeing indicated a problem upstream, and not in the house - and since it seemed to be just me, suggested they check the tap. He told me he needed to find evidence on his own to be able get the right people to even look at it, but that he knew someone in that group and would ask for a favor. THE SECOND TECH DID MENTION THAT MY CABLE RUN TO THE TAP WAS LONG AND THAT THEY USUALLY USED LOWER LOSS COAX FOR THESE LONGER RUNS THAN IS CURRENTLY INSTALLED. Well, the problem suddenly disappeared, but signal levels dropped a bit from what I had been seeing. The modem event log has been clean for a month or so now - great, and correctable and uncorrectable errors have been minimal, but........
I do have a 10 dB bidirectional amp in the basement, and that was tested twice. As it is warming up outside, my signal levels are dropping. I am currently seeing downstream levels approaching -10 dBmV, and upstream levels of very near +50 dBmV. This is with that 10 dB amplifier active.
It sure would be nice if i could get Spectrum to proactively replace that long tap to the house run with the lower loss cable. Any suggestions as to how to approach the issue with support?