Relocate a LAN cable without breaking the network

For some years the cable was laying under a bedroom door. Now I need to slightly move it. To get a better idea:

On the left is the current "cable status" and on the right is how I want to make it.
My problem is the cable isn't that long and I need to use a second cable to achieve this. Here comes the main problem - I'm using the cable for two computers. It is a straight cable with four RJ-45.

So I wonder if I get 2 RJ45 Lan Connectors and put them at the green circles, then connect the two lan cables would that work properly? I only need to extend the cable.

Is there another approach to this problem?
Any suggestions are welcome! :)

Edit: The cable is going all around the apartment. Probably it's about 20-25meters long until it goes into my server. The cable goes behind many heavy furniture and though a couple of walls. That's why I'm looking for an alternative way. :)

tftd

Posted 2012-01-31T01:48:40.693

Reputation: 162

1How long is the cable in total? And what is running over the cable? (Is it 10Mbps? 100Mbps? 1000Mbps?) – David Schwartz – 2012-01-31T02:15:47.300

1I'm guessing the cable is under carpet or something? Which would explain why you won't want to run new cable all the way? Yes, I don't see any reason why it wouldn't work. – opsin – 2012-01-31T03:17:58.317

It's going all around the apartment. Probably it's about 20-25meters long until it goes into my server. The cable goes behind many heavy furniture and a couple of walls... That's why I don't want to get a new cable :) – tftd – 2012-01-31T16:04:05.720

Answers

if I get 2 RJ45 Lan Connectors and put them at the green circles, then connect the two lan cables would that work properly?

Yes, it will work properly (if you connect all properly)

I just note - in order to decrease "points of failures" if you can pull cable near the door, I would have thought about single connection (pull existing cable, place around the door, missing a few meters near server fill by new short cable /connector-socket-connector/, or cable plus )

Lazy Badger

Posted 2012-01-31T01:48:40.693

Reputation: 3 557

Get a longer ethernet cable, it probably won't be that expensive, and much more reliable.

Journeyman Geek

Posted 2012-01-31T01:48:40.693

Reputation: 119 122

Yeah. I thought about that too. It's definitely the "right" way to go, though it won't be as easy as it sounds. (Look at my edit). – tftd – 2012-01-31T16:08:53.950

Unless you plan on cutting the existing cable and crimping on two new RJ45s so you actually splice the new cable in the middle like you drew ( bad idea ), you only need one coupler to connect the end of the existing cable to the new one, somewhere between the door and wherever it ultimately goes.

psusi

Posted 2012-01-31T01:48:40.693

Reputation: 7 195

1but if he intends to do that, he might as well get fresh cable and crimp it – Journeyman Geek – 2012-01-31T05:38:22.960

Figure out your hourly rate and the cost of new cabling, then buy a switch or hub for that price.

horatio

Posted 2012-01-31T01:48:40.693

Reputation: 3 345

I don't see why I would use a switch/hub for this task? – tftd – 2012-02-01T22:40:34.297