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How do I regain wired internet from my old room again?

Last response: in Wireless Networking
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June 18, 2013 3:08:30 PM

I had this room I use to share with my younger brother-A (13 years old) but, luckily my mom let me move out to another one by myself (my own room :)  But when I had the internet guy come he installed everything in my old room. Now my other younger brother-B (hes 16) moved into my room and my other brother-B moved out to his. Lots of moving as you can see. I think I had to mention that since my problem is now that i'm out of my old room which I used to have wired connection, now i'm forced to use wireless in my new room. Now my brothers both hog the internet on wired. I feel that since i'm paying for it that I need to restrict them bandwidth. I'm tired of slow internet and them on their computer all day while I work or come from work and have it all laggy/ slow.

So couple days back I tried this. I bought a 70 feet of coax cable used the digital splitter to send the internet to the coax to my room. I own a "Scientific Atlanta" cable modem and a linksys wireless router. I drilled a hole in my room and slid in the coax cable and connected it to my cable modem. I bought /used a cat6 Ethernet to connect behind the cable modem to my laptop. All the time I spent on this and money all FAILS. Why is that? I make sure everything is connected and it is. The only internet that goes through is the cable that goes to my old room. So I wasted money on these cables. :( 

Can anyone please help me? Do you think I have a faulty coax cable? Its brand new so I don't know what it is. Or do you think my ISP or cable guy had it specifically set up to go to my old room only? I tried everything and nothing works. So my brothers won once again. And I can't tell them to not use it cause they'll just take it out of their room and bam, i'll have no internet at all. I thought about calling my ISP so they can change it but, I don't think they will come over just to change the wire? Or will they charge me? I tried to do it myself but as you read, didn't work.

My last resort I went to the routers settings (the one that's actively being used now is a Motorola cable modem with a netgear wireless router.) So one other thing I tried was to go to QoS priority rule setup and gave my brothers PC priority to "low." Using only his MAC address. Not sure what it does but its not helping. Internet still goes slow when their on. I can confirm since when they are asleep and i'm the only one on, it goes super fast.

If you guys need any info please ask. I hope I gave enough details and what i'm trying to do. If I can't isolate my cable modem to my room. Anything I can do (third party maybe) to give him slow speeds and have me the highest?
June 18, 2013 3:17:19 PM

"Digital splitter" What, exactly, is that? A switch? Coax splitter?

No...the signal coming from the ISP, the coax, needs to go into the cable modem. That then sends it to the router to do the needed DHCP stuff for wired or WiFi.

What you want is ISP -> cable modem -> router -> devices. 1 modem per house.
Go get the needed length of Cat5 ethernet. Route it from your room to the router, wherever it may be. Plug it in.

EDIT: change "1 router per house" to "1 modem per house"
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June 18, 2013 3:19:05 PM

You cant use two modems on a singe line
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June 18, 2013 3:21:47 PM

Two options I would suggest are to use a long Ethernet cable to connect your pc directly to the netgear router, or use some form of Homeplug to connect to the router.
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June 18, 2013 3:27:11 PM

USAFRet said:
"Digital splitter" What, exactly, is that? A switch? Coax splitter?


I'm not a tech but, perhaps amature. Excuse my ignorance. Is it RF splitter then? One of these:



The one on the top is coming from my ISP. The two split ends is one going to my old room and the other one is going to my new room. The coax cable going to my new room is directly connected to my scientific Atlanta cable modem:



coax cable goes in from the outside then I use a cat6 Ethernet cable to connect the internet to my laptop.



From there I never get internet, only my old room. So its either the way my ISP set it up or my brand new coax cable I bought it faulty.. I dunno.. :S
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June 18, 2013 3:29:23 PM

You can only have one cable modem in the system. It sounds like you tried to add a second modem. the cable modem is registered with the cable company (they have the mac address).

what you need is a switch.. Take it off your old room and run the ethernet to the new room.

This one if you have a 10/100 system http://www.newegg.com/Product/Product.aspx?Item=N82E168...

this one if you have a Gigabit system
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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June 18, 2013 3:29:59 PM

1 cable modem per house.

Modem -> router -> devices
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June 18, 2013 3:31:49 PM

Outlander_04 said:
You cant use two modems on a singe line


Yeah I disconnected the wire that goes to my old room. So no one gets internet. Then when I make sure nothing is plugged in, I reconnect my cable coax that goes to my room and I still get no internet directly from the ISP.

Basically,

ISP > new cable coax to my new room > cable modem > ethernet > laptop > no internet

ISP > old cable to my old oom > cable modem > ethernet > wireless router > internet works perfectly..

:S
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June 18, 2013 3:34:01 PM

grumps42 said:
Outlander_04 said:
You cant use two modems on a singe line


Yeah I disconnected the wire that goes to my old room. So no one gets internet. Then when I make sure nothing is plugged in, I connect my cable coax that goes to my room and I still get no internet.

Basically,

ISP > new cable coax to my room > cable modem > ethernet > laptop > no internet

ISP > old cable to my old oom > cable modem > ethernet > wireless router > internet works perfectly..

:S


Right. That new cable modem is not registered with the ISP.
To get maximum speed, replace "wireless" with "long ethernet cable".
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Best solution

June 18, 2013 3:37:04 PM

grumps42 said:
Outlander_04 said:
You cant use two modems on a singe line


Yeah I disconnected the wire that goes to my old room. So no one gets internet. Then when I make sure nothing is plugged in, I connect my cable coax that goes to my room and I still get no internet.

Basically,

ISP > new cable coax to my room > cable modem > ethernet > laptop > no internet

ISP > old cable to my old oom > cable modem > ethernet > wireless router > internet works perfectly..

:S


that is because the modem is "registered" with the cable company. They have a database with the mac addresses of the modems so they know which ones are authorized. your second modem is not authorized unless you call them and change the mac address. you would have to do that again to change it back and the company probably would not cooperate.

Get the Switch I suggested. Much simpler solution.

As far as limiting their bandwidth you can do that in the router software by computer name.
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June 18, 2013 3:38:34 PM

USAFRet said:
grumps42 said:
Outlander_04 said:
You cant use two modems on a singe line


Yeah I disconnected the wire that goes to my old room. So no one gets internet. Then when I make sure nothing is plugged in, I connect my cable coax that goes to my room and I still get no internet.

Basically,

ISP > new cable coax to my room > cable modem > ethernet > laptop > no internet

ISP > old cable to my old oom > cable modem > ethernet > wireless router > internet works perfectly..

:S


Right. That new cable modem is not registered with the ISP.
To get maximum speed, replace "wireless" with "long ethernet cable".


That was one of my concerns/ thoughts. Weird ISPs can do that? I thought maybe the coax cable I bought was faulty. And I thought I ask here before I have to spend more money to get the internet working WIRED to my room. So I guess I can't do anything on behalf of myself. I would have to call my ISP and have the coax registered to my room too?

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June 18, 2013 3:44:53 PM

grumps42 said:
USAFRet said:
grumps42 said:
Outlander_04 said:
You cant use two modems on a singe line


Yeah I disconnected the wire that goes to my old room. So no one gets internet. Then when I make sure nothing is plugged in, I connect my cable coax that goes to my room and I still get no internet.

Basically,

ISP > new cable coax to my room > cable modem > ethernet > laptop > no internet

ISP > old cable to my old oom > cable modem > ethernet > wireless router > internet works perfectly..

:S


Right. That new cable modem is not registered with the ISP.
To get maximum speed, replace "wireless" with "long ethernet cable".


That was one of my concerns/ thoughts. Weird ISPs can do that? I thought maybe the coax cable I bought was faulty. And I thought I ask here before I have to spend more money to get the internet working WIRED to my room. So I guess I can't do anything on behalf of myself. I would have to call my ISP and have the coax registered to my room too?



They will only do that for extra money per month. In effect, you are then buying two connections for the house. That is not needed.

2 solutions:
1. Move the existing, registered, cable modem and router to your room. Long ethernet cables or wireless to your brothers.
2. Long ethernet cable from your room to where the router currently is.

#2 is the easiest solution.
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June 18, 2013 3:55:09 PM

I will consider that thanks.. got a bit confused, so its the cable modem that is registered, not the coax cables itself.. nice to learn something new. Never knew about this. :) 
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June 18, 2013 4:01:07 PM

grumps42 said:

Why would the ISP not cooperate with registering a new cable modem? And for your suggestion is to get an ehternet switch thing.. is that basically just going to run a long (maybe 100feet ethernet cable) from my old room to my new room? How does that work exactly. And yeah I tried to limit their bandwidth but it doesn't really help. I still get lag and slow broken CRC downloads.


There can be only one cable modem. That is what talks to the ISP, and gets the one IP address. If you want two, you will have to pay for two.

There is no problem running multiple devices from one cable modem/router combination. All the devices talk to the router, either wired or wireless. 100' of ethernet cable works just fine with no degradation in connect speed.
If you need more wired connections than the back of the router can handle, that is what a switch is for.

Currently, I have ~10 devices, all running off one router. Some wired, some wireless. No problem.

You do not need two cable modems.
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June 18, 2013 4:03:31 PM

Everyone gave incredible knowledgeable answers. As for now i'll so how this goes. I'm going to get my old cable modem and see if that solves anything. I will get back at you guys in about a day. I need to take a break from this. I'll be back for new updates.
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June 18, 2013 4:05:08 PM

Literally, just run an ethernet cable from where you are to where the router is.
Done.
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June 18, 2013 4:14:25 PM

USAFRet said:
Literally, just run an ethernet cable from where you are to where the router is.
Done.



I already have the coax going to my new room. So I might as well get my old cable modem back and have the registered modem link to my room without problems. For Ethernet, I would have to buy the specific length (maybe 150-200ft) of Ethernet cable. More money to waste. I'll try getting the registered modem to my room first. Then i'll consider longer Ethernet if none works.
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June 18, 2013 4:16:32 PM

grumps42 said:
USAFRet said:
Literally, just run an ethernet cable from where you are to where the router is.
Done.



I already have the coax going to my new room. So I might as well get my old cable modem back and have the registered modem link to my room without problems. For Ethernet, I would have to buy the specific length (maybe 150-200ft) of Ethernet cable. More money to waste. I'll try getting the registered modem to my room first. Then i'll consider longer Ethernet.


Then you cut your brothers off, unless they have wireless capability.
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June 20, 2013 11:55:21 AM

USAFRet said:
grumps42 said:
USAFRet said:
Literally, just run an ethernet cable from where you are to where the router is.
Done.



I already have the coax going to my new room. So I might as well get my old cable modem back and have the registered modem link to my room without problems. For Ethernet, I would have to buy the specific length (maybe 150-200ft) of Ethernet cable. More money to waste. I'll try getting the registered modem to my room first. Then i'll consider longer Ethernet.


Then you cut your brothers off, unless they have wireless capability.


OK I took my old modem to my new room, connected the coax cable and ethernet. Still did not work. I assume now its either two things..

1. Both the coax cable AND cable modem are registered to the ISP.

2. If its only cable modem that gets registered not the coax cable, then I have a faulty coax. Although I bought it new.

So I decided to call my ISP they said they would register the new modem for me without any charge. Of course this is a reset replacing my old modem to the new one (new mac address.) Meaning the old one will now be useless. It took some time doing it but I did it. Thanks everyone problem solved. I did not know these things get registered to the ISP strictly. I thought you could just jump another wire to my room and bam, works. But nope, thats not the case.
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June 21, 2013 12:43:03 PM

If you are trying to use the same old modem that is working in one room, you shouldn't have to call the cable company to move anything to another room. Coaxial cables are just metal & plastics and are interchangeable, the Cable company doesn't know anything about a consumer changing a cable, nor do they care.

Here's a better way to test this if you have cable tv service as well.
First, hook up a tv to the connection that works with the cable modem. Do you have cable tv channels on that tv? If so, hook up this super long coax cable to that same connection and move that tv to your room. Hook it up to the end of that super long cable in your room and check for tv cable. If you do not have cable now but did before, then something is wrong with the cable, or you're connecting something wrong.

If you don't have tv service, or can't get tv service out of the connection in your old room, I suggest you make friends with someone a bit more mechanically and technology inclined than yourself and have him help you and teach you a bit. This isn't as hard as you're making it be. You had the right idea in the beginning by buying the long cable, you just should have bought an ethernet cable instead. This will work too, but you're running into a hickup that you're going to need a physical presence to overcome.
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June 21, 2013 12:46:36 PM

grumps42 said:
USAFRet said:
grumps42 said:
USAFRet said:
Literally, just run an ethernet cable from where you are to where the router is.
Done.



I already have the coax going to my new room. So I might as well get my old cable modem back and have the registered modem link to my room without problems. For Ethernet, I would have to buy the specific length (maybe 150-200ft) of Ethernet cable. More money to waste. I'll try getting the registered modem to my room first. Then i'll consider longer Ethernet.


Then you cut your brothers off, unless they have wireless capability.


OK I took my old modem to my new room, connected the coax cable and ethernet. Still did not work. I assume now its either two things..

1. Both the coax cable AND cable modem are registered to the ISP.

2. If its only cable modem that gets registered not the coax cable, then I have a faulty coax. Although I bought it new.

So I decided to call my ISP they said they would register the new modem for me without any charge. Of course this is a reset replacing my old modem to the new one (new mac address.) Meaning the old one will now be useless. It took some time doing it but I did it. Thanks everyone problem solved. I did not know these things get registered to the ISP strictly. I thought you could just jump another wire to my room and bam, works. But nope, thats not the case.


Hmm, I missed this post. What was probably happening was that your old modem was stuck to listening to the mac address of the router or PC it was connected to before you moved it. You sometimes have to unplug it and wait for a few minutes before it'll let go and then you can attach it to another device. Sometimes there's a reset button you can hit, and sometimes you have to call the cable company to have them remotely reset it in the case of modems with built-in batteries.

I'm glad you got it worked out.
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