Cannot connect modem to device via wall ethernet port

Georgi Dimitrov 12

Reputable
Dec 31, 2014
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4,510
I have an isp modem that is working fine. I can connect my computer directly to it and have internet. I have it plugged in to the wall via an Ethernet cable. I have 5 or so rooms and each one has an ethernet jack on the wall. I have located the place where all the cables meet and I have wired it correctly ( 2 times actually)(all the cables are connected together). I have stripped the cables and insulated them properly with shrink wrap. I have also triple checked the ethernet jacks that i will be using (3 of them).

Basically I am saying that the wiring is perfect for the 3 ethernet jacks that i will be using.

So my problem goes like this. The isp modem is plugged in the wall in room 1. When i go to room 2 or room 3 and i plug my computer in the wall via ethernet cable, i get no connection.

However, (modem is still plugged in in room 1) if I plug in a powerless device (ex. TV turned off, old computer with no power cable going to it, or old modem with no power cable going to it) in room 2, thecn i plug my omputer to the wall via ethernet cable in room 3 - I suddenly have internet on my computer which is in room 3. When i power on the device in room 2, my internet instantly stops.

I have tested the resistance in the cables and it does not seem to be above normal. I made sure the cables are not broken or disconnected. My house is about 8 years old.

Also, this might be a modem issue, but when the isp modem is plugged in room 1, a powerless device in room 2, then a second modem (netgear)(for wifi) is plugged in the wall in room 3, it does not receive connection with the isp modem. When i take the cable i am using to plug the secondary modem and plug it in my computer i get connection. So the secondary modem is not connecting wit the isp modem.
When i connect the secondary modem to the isp modem through just a cable (not the wall) I get a connection and internet.

Any ideas what might be wrong with my setup?
All the cables I am using are working fine, I am sure the wiring is good for the 3 ethernet jacks and the place where the cables meet.

 
Solution


You just connected the cables ends together in the middle like a bundle? That is like going into your...

RealBeast

Titan
Moderator
When you say that all the cables are connected together where all the cables meet -- you mean that each cable is correctly connected to a male Ethernet RJ-45 jack and then they are all plugged into a switch?

And you used a straight through pattern (preferably 568B) on each end (the wall and the central switch)?

What model numbers are your "modem" and Netgear?
 

Georgi Dimitrov 12

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Dec 31, 2014
4
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4,510
I mean where the 5 or so cables meet in the wall, i connected them together. I did not use a switch box i just connected them like all the blue cables together, all the orange cables together so on. There is 5 seperate cat45 cables and they are connected as said above. 5 orange cables together, 5 orange-white cables together so on. I think i did it 568b but im not entirely sure.

I am nit quite sure the modem models since i am nit home right now. The isp modem is called bell connection hub. The other one is netgear. Il have the model for you in a couple hours.

As for the jacks in the wall, they are all wired the same way.
 

RealBeast

Titan
Moderator
That will not work.

You must put RJ-45 jack ends on the individual cables and then plug them into a switch that is attached by an Ethernet cable to the router and then the router can assign IP addresses to all devices on your internal network.

Your ISP assigns you an IP address on their network, which your gateway (or separate modem and router) will use to connect all of the devices on your internal network.
 

RealBeast

Titan
Moderator
Georgi, HERE is a picture of the connectors you need (you can get them in much smaller bags). You can often get them in hardware stores. You should also get a connector crimper, which looks like THIS.

Once you get all of the connectors attached, then you will want to attach them to a switch, something like THIS, which requires a power outlet. You can them connect your modem --> router --> switch and you should be good to go. Some alterations in the configuration are possible if your modem/router location are constrained.
 

Georgi Dimitrov 12

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Dec 31, 2014
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It seems that the problem is in the way i wired the wall cables. I will buy a switch and do it properly.
As for the isp modem it is also a router. The model is called "Bell Connection Hub" and the software version is "FAST2864_v68446"
The other device is actualy a router. It is manufactured by Netgear, model number "WGT624 v3". The software version is "V2.0.10_1.0.1" (there is a newer software version that I will update soon".

@realbeast This might be a dumb question but when you say "switch that is attached by an Ethernet cable to the router" do you just mean that all the cables that meet in the wall have to be attached to the switch? (one of those cables is the one where the modem is plugged in to the wall via ethernet cable).
 

RealBeast

Titan
Moderator
All of the cable that go to your rooms need to be plugged into the switch. Since you have a gateway (a combo modem and router) the input to that device needs to connect to its WAN port, then the switch needs to connect to one of the LAN ports of the gateway, then everything else (all the cables to the rooms) should connect to the switch.

It must be configured Bell Hub --> switch --> all the rooms (one of which has the Netgear as an access point).

You can place the Netgear device in one of the distant rooms and configure it as an access point by turning off DHCP and giving it a static address outside the DHCP assignment range of the Bell Connection Hub. Also use a different radio channel on the Netgear from one of the three non-overlapping channels (1, 6, and 11). You must attach the Netgear using one of its LAN ports, but the other three LAN ports are available just like a switch in that room.
 

Georgi Dimitrov 12

Reputable
Dec 31, 2014
4
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4,510
Currently I have a male rj45 connector put on the cable that was located in the wall box which goes to my modem/router from my isp. Room 1 my modem/router from the isp is connected to the wall via ethernet cable. The closet where the wall box is located (mentioned above) i have my router connected to the cable that does to room 1. I cannot receive a connection. However when i plug in my computer to that cable that goes to room 1 i instantly have a connection.

Also, my isp model/router does not recognize the secondary router. When i go to the settings i see the device (secondary router) as inactive.

I do not understand why my secondary router cannot receive a connection to my isp modem/router but my computer can.
 

RealBeast

Titan
Moderator
Okay, to summarize. Now you have all Ethernet cables from the rooms attached to a switch in the closet. Room one has the modem/router and an LAN port connects that router to the wall port that goes to the switch. In another room you have another router. Correct?

The second router *must* be configured as a wireless access point in your desired setup. That means it should connect to the wall Ethernet port with a cable to its LAN port -- not its WAN port. The second router DHCP must be disabled and that device should be given a static address that is outside the DHCP assignment range of your primary router. So if your primary router gateway address is 192.168.x.1 and it has a DHCP range of 192.168.x.2 to .128, make the secondary device static address 192.168.x.254 (or any lower last number that is not dynamically assignable by your main router).

And as I said earlier, give the secondary device a different non-overlapping radio channel.

 


You just connected the cables ends together in the middle like a bundle? That is like going into your car, cutting all of the cables and tying them together by color. Nothing will go anywhere. Did you look up some things on how to setup a network or did you just go by what seemed like the right thing to do? They way you did it all of the rooms are connected together with one loop with none of them actually being connected to your router.

All of the wall jacks need to be connected to a central hub where they terminate and connect to the router/switch directly using a single run of cables, not dividing each by color.

http://lifehacker.com/how-to-wire-your-house-with-cat5-or-cat6-ethernet-cable-480020760

From the wall jacks in the rooms there should be a ethernet cable run to a central point where you router and maybe modem sit, you may need a switch also if you don't have enough ports on the router. There you'd either setup a patch pannel and from the jacks on the patch pannel you connect to the router/switch or you can have the ends of the cables wired with the rj45 connections and plug those into the router/switch.

If the house was already wired with the jacks they should all have been termnated already at one place where you can connect them to the router/switch.
 
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