Twc self install help

[dark_xzyph3r]

Hey guys, I setup a time for TWC to come and install but o got the email and they are charging me $140 for it (last time I checked, $65+$30 isn't $140) so I'm thinking of just canceling it since we have had TWC installed before. So basically what I'm asking is where would I go in my house to find where my coax jack goes to from my room and where would my existing twc installation coax be so I can just connect them? Thanks

[Donut417]

Depends. Our cable line comes from the pole to a box on the back of our house. Inside that box the wire connects to a grounding block, which grounds the coax to earth. Then another line connects from the grounding block and goes thru the foundation of the house to a two ways splitter. From there we have the modem hooked up to one leg of that splitter and our TV runs off the other leg of the splitter. This is how Comcast does it. Every cable company could be different. Also, it could be different in each area. 

 

I would check basement or crawlspace. If you have a box on your house where you see coax going in to then you can also check that. 

[Smite]

TWC in most cases runs like this. room>junction>cable box on outside of residence. Most of the time the junction is in the attic/craw spaces above the place where it comes into the residence. Again every house is different but the principle holds true, if you have coax in a room it is going up or down. down if you have a basement, up if you live where there are no basements like me in Texas lol. The junction is usually mounted to some framing or if they were lazy it will be tossed about. then it will have 1 or 2 lines going out to the main box of your house. I live in a duplex so my neighbors also goes into it. These are then connected to the street, either by in ground or overhead connection. 

 

Summary: "99% of the time if you had TWC there before the install is just screw in a modem to the coax."

[Trikein]

DOCSIS (cable internet) all depends on the amount of signal going into the modem, and the amount of signal the ISP's system requests the modem to broadcast out. 2 way street. Each way uses a different set of frequencies, think AM/FM radio. You have your downstream and upstream. There is the power level (strength) and the SNR (clairity) which stands for Signal to Noise Ratio. The higher the strength and the lower the noise, the higher the SNR. Clarity is key for both latency and throughput.

 

Many houses were wired when analog cable, or even digital cable, was the big thing. Cable TV(mostly) only uses one way communication, so the houses were wired to emphasis that, at the cost of upstream signal. This is called loop(aka daisey chain) vs home run. See here for simple visual break down. If your house is wired in loop, what your signal level is to a outlet depends a lot on where that outlet is on the loop. Knowing how your house is wired for coaxial would help, also so would know what the levels are coming into the house. You can do this by moving the modem around to different outlets and then connecting to it (wired or wireless) with a device and accessing it's diagnostics, which is usually 192.168.100.1 or 192.168.0.1. If you need specifics, reply with the model number. See here on what your signal levels should be, or post them here for review. The link is for Cox because the similar FAQ for TWC is for D2 modems only and not very accurate IMO.