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nesy
New Forum Member


Joined: Jan 29, 2008
Posts: 2
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ok, cable comes into the house, then it goes into my cable modem, from there it goes into Vonage.
i want the cable to come into the house, get split between a TV and the cable modem, then goto vonage... whenever i hook it up this way with a splitter Vonage doesnt work.
HELP! |
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kdf55
Vonage Forum Evangelist


Joined: Jun 30, 2007
Posts: 373
Location: Highland, IL
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That sounds like the splitter is bad. Otherwise your cable signal is poor. |
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plvnst
Vonage Forum Associate


Joined: Jul 05, 2007
Posts: 18
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You're going to get ~4db of loss for each port on the splitter. If you incoming signal is low in the first place then the splitter will compound that. From what I've read it doesn't seem to matter what splitter you buy, they're all about the same. Not sure what options are available to bump the signal up other than hitting up your ISP/cable company to make an adjustment. |
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tglea
Vonage Forum Evangelist


Joined: Nov 22, 2006
Posts: 433
Location: Nebraska
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Also, its real easy to screw up a cable signal with the do it yourself junk from most home improvement stores. If you are making the cables and connections, make sure you inspect the connectors very good. Make sure there is no foil or insulation strands wrapped around or touching the center copper wire. |
_________________ Cox: 9Mbps/800kbps Router: D-Link DI-624 Vonage: V-Portal |
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NateHoy
Vonage Forum MVM


Joined: Nov 01, 2005
Posts: 2257
Location: New England
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I'm going to go with signal loss. Most, if not all, splitters are going to cut the signal strength in half on either side of the split, plus a bit of extra loss for the extra connections.
Your cable/ISP should support having your cable modem on its own connection, which they have wired and prepared specifically for your modem, and you should not mess with that connection. If you are trying to re-use a dedicated cable modem line to split it out to TV to save some wiring from your actual TV hookup, take my advice and don't. Many cable companies put a good bit of effort into getting the signal strength just right for a cable modem.
I know mine ran a whole second cable in from the pole and spent a good bit of time fiddling with filters and signal strengths to get the modem exactly in the middle of the ideal signal strength range. I'm a good distance from the cable company, though, so signal strength was already a concern. Installation took 3 hours, but I haven't had a single outage in well over two years, and my signal and latency have been top notch. And that's on my own really old (5+ years) DOCSIS 1.0 modem, no less. |
_________________ Comcast Cable (3m down / 256k up) -> Linksys BEFCMU10 v2 (DOCSIS 1.0) -> WRT54G v4 ("Tomato" firmware) -> the rest of my network including a WRTP54G (Firmware: 5.01.04) My Vonage Self-Help Guides: http://vonage.nmhoy.net |
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Steve48
Vonage Forum MVM


Joined: Aug 30, 2005
Posts: 4777
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Nesy, I assume that when you have this problem your internet service also doesn't work. Is that correct? |
_________________ Steve Gray Orlando, FL |
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ed56
Vonage Forum Evangelist


Joined: Jun 08, 2007
Posts: 832
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The Linksys BEFCMU10 v2 (DOCSIS 1.0) is a problem, regardless of anything else. Per Vonage:
DOCSIS 1.0 was designed for "best effort", meaning there were no guarantees that the data would reach its destination quickly or reliably. It wasn't until DOCSIS 1.1 that features such as QoS (Quality of Service) were implemented into the modems. QoS is basically a guarantee that the network will deliver predictable results. Because Voip requires reliable data transfer to operate smoothly, Vonage service works best with modems that are either DOCSIS 1.1 or 2.0.
See http://www.vonage.com/help.php?article=1097&category=124&nav=5&refer_id=WEBTS0706010003W1&promo_id=USVONRPFMF
Tme Warner upgraded my Cable Modem from a Toshiba 1000 to my current Motorola Surfboard when I found this out. |
_________________ Time Warner Road Runner / Motorola SB5101 Cable Modem / Lniksys E2000 / Vonage VDV21 |
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ed56
Vonage Forum Evangelist


Joined: Jun 08, 2007
Posts: 832
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BTW, I have multiple splitters in the house (6 cable TV hookups and 1 hookup to internet).
The Time Warner people put an amplifier in fron the the TV run, making sure there was NOT a signal amplifier in front of the internet connection run. |
_________________ Time Warner Road Runner / Motorola SB5101 Cable Modem / Lniksys E2000 / Vonage VDV21 |
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nesy
New Forum Member


Joined: Jan 29, 2008
Posts: 2
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yeah, the cable cuts out too when i split it.
the cable guy is comign out today anyhow- i will mention the situation and ask what can be done short of installign another line.
thanks guys for all your help. |
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NateHoy
Vonage Forum MVM


Joined: Nov 01, 2005
Posts: 2257
Location: New England
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ed56 wrote: | The Linksys BEFCMU10 v2 (DOCSIS 1.0) is a problem, regardless of anything else. Per Vonage:
DOCSIS 1.0 was designed for "best effort", meaning there were no guarantees that the data would reach its destination quickly or reliably. It wasn't until DOCSIS 1.1 that features such as QoS (Quality of Service) were implemented into the modems. QoS is basically a guarantee that the network will deliver predictable results. Because Voip requires reliable data transfer to operate smoothly, Vonage service works best with modems that are either DOCSIS 1.1 or 2.0.
See http://www.vonage.com/help.php?article=1097&category=124&nav=5&refer_id=WEBTS0706010003W1&promo_id=USVONRPFMF
Tme Warner upgraded my Cable Modem from a Toshiba 1000 to my current Motorola Surfboard when I found this out. |
My BEFCMU10 V2 works wonderfully. Has been for 5 years. DOCSIS 2.0 may be better, but Vonage works great with 1.0 provided you have a decent router. |
_________________ Comcast Cable (3m down / 256k up) -> Linksys BEFCMU10 v2 (DOCSIS 1.0) -> WRT54G v4 ("Tomato" firmware) -> the rest of my network including a WRTP54G (Firmware: 5.01.04) My Vonage Self-Help Guides: http://vonage.nmhoy.net |
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