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Started By
Message
Need help troubleshooting problems with coax splitter
Posted on 10/14/15 at 12:06 pm
Posted on 10/14/15 at 12:06 pm
I'm kind of at a loss here as this is stupid simple.
I'm in the process of cutting the cord. My external cable feed currently goes to an 8 way splitter which in turn distributes throughout the house, including modem.
About a month a go I set up an antenna and tested it for a few days running the antenna coax from attack into the "IN" of the 8 way splitter. The cable feed was connected to an F-Type Coaxial Cable Connector and also a two way splitter during this time to provide internet. So the antenna cable ran to big splitter to give antenna signal to various tvs while cable ran directly to modum. My wife got sick and was home for a few days and for that I switched it back cable.
So last night I try to switch again--a simple process. Well, I can't get internet to work, meaning the external feed connected directly to the modem wire simply doesn't work using the exact splitters I used a few weeks ago. It does work with the 8 way splitter even after disconnecting and reconnecting.
It was very late so I chalked it up to being tired, but it bugged me and I went home to try again just now. Still nothing. I assume it's a splitter issue but what the hell? I've never had a splitter or F connector simply not work at all. Do I buy and test more splitters?
Any advice on how to troubleshoot a splitter or connector that worked a few weeks ago but now does not?
Thanks
I'm in the process of cutting the cord. My external cable feed currently goes to an 8 way splitter which in turn distributes throughout the house, including modem.
About a month a go I set up an antenna and tested it for a few days running the antenna coax from attack into the "IN" of the 8 way splitter. The cable feed was connected to an F-Type Coaxial Cable Connector and also a two way splitter during this time to provide internet. So the antenna cable ran to big splitter to give antenna signal to various tvs while cable ran directly to modum. My wife got sick and was home for a few days and for that I switched it back cable.
So last night I try to switch again--a simple process. Well, I can't get internet to work, meaning the external feed connected directly to the modem wire simply doesn't work using the exact splitters I used a few weeks ago. It does work with the 8 way splitter even after disconnecting and reconnecting.
It was very late so I chalked it up to being tired, but it bugged me and I went home to try again just now. Still nothing. I assume it's a splitter issue but what the hell? I've never had a splitter or F connector simply not work at all. Do I buy and test more splitters?
Any advice on how to troubleshoot a splitter or connector that worked a few weeks ago but now does not?
Thanks
This post was edited on 10/14/15 at 12:10 pm
2
Posted on 10/14/15 at 12:37 pm to ChunkyLover54
Are your wires labeled? The simple answer is that you are probably connecting the wrong input or output wire to the splitter when you make the switch.
Does the two way splitter have an "in" and an "out"? Secondly, if it's really a straight through connection you are trying to make you don't need that splitter at all. Just use a barrel connector to connect the two F-Type connectors together.
Does the two way splitter have an "in" and an "out"? Secondly, if it's really a straight through connection you are trying to make you don't need that splitter at all. Just use a barrel connector to connect the two F-Type connectors together.
Posted on 10/14/15 at 12:48 pm to ChunkyLover54
Is it possible that you are losing too much signal gain by operating the modem through the two-way splitter? Ive had prior issues in this exact scenario. May need to purchase an inline amplifier.
Posted on 10/14/15 at 12:48 pm to VABuckeye
quote:
Are your wires labeled? The simple answer is that you are probably connecting the wrong input or output wire to the splitter when you make the switch.
Yes. It's the right cables.
quote:
Does the two way splitter have an "in" and an "out"? Secondly, if it's really a straight through connection you are trying to make you don't need that splitter at all. Just use a barrel connector to connect the two F-Type connectors together.
I used one of these:
Link to HOme depot hard to post pic
I'm at a complete loss why it won't work. Cable works when both (feed and modem cable) are plugged into 8 way slitter (does not work if either are not plugged in) but not to each other.
This post was edited on 10/14/15 at 12:51 pm
Posted on 10/14/15 at 12:52 pm to lsugolfredman
quote:
Is it possible that you are losing too much signal gain by operating the modem through the two-way splitter?
Anything's possible. Thanks. I'll look into it.
It's weird, like I said a month ago it worked with the same hardware but now simply won't.
...wait wouldn't an inline amplifier only be used for the antenna? That's not my issue, that signal works fine but on the other end the internet won't connect through splitter or F connector.
This post was edited on 10/14/15 at 12:55 pm
Posted on 10/14/15 at 1:30 pm to ChunkyLover54
I'd put a new F connector on
Posted on 10/14/15 at 1:31 pm to TigerWise
quote:
I'd put a new F connector on
I would also try a new barrel connector.
Posted on 10/14/15 at 2:02 pm to VABuckeye
thanks
Posted on 10/14/15 at 2:22 pm to ChunkyLover54
quote:
wait wouldn't an inline amplifier only be used for the antenna?
You might need one on the cable lines as well. If you split a signal too many times and try to push it to far it will deteriorate the signal and could cause your modem to fail. Also, crimps in the lines could cause signal deterioration too.
Posted on 10/14/15 at 3:21 pm to AnonymousTiger
quote:
You might need one on the cable lines as well. If you split a signal too many times and try to push it to far it will deteriorate the signal and could cause your modem to fail. Also, crimps in the lines could cause signal deterioration too.
Thanks. You are correct. What's confusing to me is that what I'm trying to do does not add any splits, it just changes them. IDK. thank you for your help.
Posted on 10/14/15 at 4:07 pm to ChunkyLover54
Probably a bad connector, but if not, here's another possibility.
An 8-way splitter implies an 11 dB loss, so the direct connection will be 11 dB hotter than going through the splitter. Modems typically have a nominal range within -15 to +15 dB, and newer models may be -12 to +12. Thus, if your incoming power was adequate to be split 8 ways without an amp and at the high end, it may be too much for a single device. If so, you would need to install an attenuator, or, say, a 3-way splitter, using a -7 dB output for the modem and terminating the unused ports.
An 8-way splitter implies an 11 dB loss, so the direct connection will be 11 dB hotter than going through the splitter. Modems typically have a nominal range within -15 to +15 dB, and newer models may be -12 to +12. Thus, if your incoming power was adequate to be split 8 ways without an amp and at the high end, it may be too much for a single device. If so, you would need to install an attenuator, or, say, a 3-way splitter, using a -7 dB output for the modem and terminating the unused ports.
Posted on 10/16/15 at 12:36 pm to Spock's Eyebrow
Just to update, and I appreciate the help, but it still makes zero sense to me. I bought a new F connector and a splitter and still nothing. Called cox and anytime the feeder cord is not connected to the one I've traditionally used, it won't work. Why? I have no idea.
Anyway, I basically just left it as in an 8 way splitter with only the line going to modem as an active cable. Then used another splitter to plug in the antenna cord to the various TVs.
Anyway, I basically just left it as in an 8 way splitter with only the line going to modem as an active cable. Then used another splitter to plug in the antenna cord to the various TVs.
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