Reddit reviews PCT 1-PORT BI-DIRECTIONAL CABLE TV HDTV AMPLIFIER SIGNAL BOOSTER WITH PASSIVE RETURN PATH

For sure. If you have a relatively clear view of NNW, you can probably get by with a [cheap indoor antenna stuck to a north/west window] (https://www.amazon.com/Antenna-Amplified-Broadcast-Television-Detachable/dp/B01FUB4ZG8/) (on sale for $17 when I'm posting).

If you're in a valley (like me), you'll probably need a more serious setup (I have this one mounted in my attic with an amplifier and it works great, even though the signal is coming to me through the side of a hill to my NNW).

Who needs cable with the internet and OTA TV?

You could try running one of these to see if it improves the signal at all.

https://smile.amazon.com/PCT-BI-DIRECTIONAL-AMPLIFIER-BOOSTER-PASSIVE/dp/B000F28DP2/ref=sr_1_4?ie=UTF8&qid=1505110464&sr=8-4&keywords=cable+booster

If it gets no better and Cox is not doing anything to improve the issue otherwise an FCC complaint may be in order.

https://consumercomplaints.fcc.gov/hc/en-us

A coax amplifier helps a lot: http://www.amazon.com/PCT-BI-DIRECTIONAL-AMPLIFIER-BOOSTER-PASSIVE/dp/B000F28DP2/

Eh? depending on where the modem and tv are they could very well just be both off a splitter right between them. I agree that it could be a line conditioner, he could also have a return amp that's not functioning, which would explain why it's the upstream. OP, do you have a basement, and if so do you have anything that looks like a splitter but with one of the lines running to a power outlet? Could just be a return amp not boosting your return signal, which would make it so the tv would still work as all that needs is a signal coming in, not so much going out.

Something that might look like this: http://www.amazon.com/PCT-BI-DIRECTIONAL-AMPLIFIER-BOOSTER-PASSIVE/dp/B000F28DP2 If you do find one, it should have a light on it to indicate power, and even if that light is still on, unplug it for several seconds till the light is off and plug it back in.

"Drop amp" is what you are looking for. Running 2 now. For cable tv/Internet, currently running this

http://www.amazon.com/Digital-Amplifier-Internet-Signal-Booster/dp/B001EKCGT8?ie=UTF8&keywords=Drop%20amp&qid=1463539433&ref_=sr_1_1&sr=8-1

And for Attic antenna, running this:

http://www.amazon.com/PCT-BI-DIRECTIONAL-AMPLIFIER-BOOSTER-PASSIVE/dp/B000F28DP2?ie=UTF8&psc=1&redirect=true&ref_=oh_aui_search_detailpage

Been running drop amps for years w/o problem. Also, they allow indirect power over one of the cable lines (requires separate $10 adapter) for those who don't have power at install location.

These things are freaking awesome. I remember around 2000, Comcast cable guy came out to "fix" poor signal in kids room. He jacked around with the connections and then said it couldn't be fixed, and blamed us for having 6 outlets when "Comcast only guarantees signal for 4 outlets." He left us worse off. He damaged kids connection in the attic (he pulled off connector but was too lazy to do anything but sloppily put it half-way back on), and Comcast billed like $80 for the "service" visit.

Luckily after very little Internet research, I realized Comcast cable guy was total moron. Drop amp was immediate, cheap, and trivial fix to our problem. Even a half-wit cable guy should have been able to point this out and save us some grief. Deployed 8-port with active return at the time. Also bought cable crimper and connectors to fix Comcast sloppy work -- now, I don't let them touch anything on my side of the cable "drop."