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I have Cable TV, so the line is already there.
In my case, the cable company had to come to my house and set up a data-port. It may differ with Cox Cable, however.
Hooking up the whole thing is very easy.
One cable is connected between the outlet on the wall and the cable modem.
Another cable goes from the modem to the computer.
Setting up the ISP addresses on your system can be easy, if you're given clear instructions. It may require a phone call to someone at the service provider to get things right.
Good Luck!
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I wonder, if in your case, that was because without the filter there may have been interference on the computer from the TV?
Hi Myrna,
The main cable line carries both Television broadcast for a zillion channels, plus the data the is being sent from the Internet. I think the device that is put on the dataport just directs the databits in the right direction.