I have a similar problem; i.e., can't get my cable modem to work after the
signal is split to WinTV.
I have been running a cable connection (RoadRunner) for 3 1/2 years.
Recently, I purchased a WinTV card and tried to split the signal from my cable
after it came out of the wall. The WinTV would work, but the Toshiba modem
would not connect after I inserted a 5-1100Mz,3.5dB 2-way splitter.
I crawled up into the attic to check the configuration there. The cable line
from TimeWarner has a isolation tap which separates my office cable (for the
modem) from an amplifier and the 10 connectins attached to it.
Is my problem (inability to connect both the TV video and modem) due to signal
strength, a faulty configuration, or components?
Also, I was interested in trying to "read signal levels" and tried to reach
(and ping) http://192.168.100.1 -- unsuccessfully. Can you still access this
PS I didn't really need or want a TV window on my monitor until OfficeMax had
the card for $29.95 ($39.95 minus a $10 rebate). Once installed and working
(without the Internet connection), I decided it was a really nice option!
>Buy a splitter with a frequency range (marked on the splitter) of 5-1000
>2Way splitters usually attenuate about 3 -3.5dB.
>Unless your signal level was marginal before, one split should work.
>Depending on what modem you have, you may be able to bring up the modem
>"configuration mgr" and read the signal levels. http://192.168.100.1
>If you can, levels between -15dB/mV and +15dB/mV are nominal. If you're
>seeing levels on the lower end...such as less than -10dB/mV without the
>splitter, splitting might not work.
>> I been using a cable modem in a room where I have a connector coming from
>> the wall to the cable modem which been setup that way for several months.
>> When I had the tech. setup the cable modem at the time I didn't think
>> tell him also put a splitter there in case I need to install a TV. Now I
>> would like to get a splitter to be install in the room to be able to have
>> cable modem and TV coming off the same line. Can someone tell me do I need
>> to get that splitter from the cable company or can I get one from Radio
>> Shack. If I can get it from Radio shack which one can I used? I really
>> didn't want the cable company send someone out to just install a splitter
>> and charge me for service.