Wired Network - two PCs on one router connection???

  Seadog 20:47 24 Sep 2011

A friend has a single rj45 socket wired from a network, is there a way he could take two network connections from this one cable?

Basically what he wants is two sockets hardwired to the one cable, in order to use a laptop in either of two rooms, is this possible? Only one laptop would ever be connected at any one time, i.e. only one socket in use at any one time.

He did try to connect another socket by simply connecting (piggybacking) the wires from this second socket to the back of the first socket. The extension socket then worked perfectly but the original socket didn't, - possibly something to do with the termination of the cat5 cable?

I have seen network splitters and network economisers for sale, would something like this do to have two sockets on one cable?

  mgmcc 13:21 25 Sep 2011

Conventionally, routers have four RJ45 LAN ports although there are some models with only one. To provide additional LAN ports where only one port is available, or at the end of a single ethernet cable run, you need to connect a Network Switch.

This provides the additional ports with the router still allocating IP addresses by DHCP to any connected devices.

  Seadog 14:18 25 Sep 2011

Thanks for that mgmcc

I thought it might have to be something like a switch or a hub that was needed.

The router the single network cable comes from does have four connections but they are all in use. (and a long way away)

Just seems a shame as he only wants to use one connection at a time - he only has one laptop so can only connect to one at a time!!

Mind you, there's a cheap switch on Amazon for only £6.99.................

  mgmcc 16:20 25 Sep 2011

If there's only ever going to be one Laptop connected, why does he need two RJ45 ports? As it will be necessary to run a cable to the second room anyway, all he needs is an RJ45 Coupler to connect the additional ethernet cable going into the second room.

  Seadog 18:09 25 Sep 2011

I understand that, but it means plugging and unplugging connections - we are talking ease of use here! Ha Ha

Really it is just so that he only has to plug the laptop in wherever (yeah, ok either of two rooms!) he is.

  Strawballs 22:38 26 Sep 2011

Why not set up wireless then the laptops can be used anywhere in the house with out wires trailing if he is going to get a router this would be the easiest option.

  Seadog 00:07 27 Sep 2011

There is no need for wireless Strawballs, it is just that my mate would like to occasionally use his laptop in another room, on the existing wired network. I think the easiest way is just to run an extension cable and plug it into the first socket whenever he needs it.

Thanks for the suggestions though

  tullie 18:12 28 Sep 2011

In my opinion,the easiest way is wireless,any good reason why not?

  Seadog 19:15 28 Sep 2011

Why go to the expense of buying a router and usb wireless dongle? he has the cabling/plugs already!

Also, there's no spare power socket near the first rj45 socket so he'd have to sort out an adapter for that as well.

Think he's going to just plug the second cable into the first socket now anyway, just means he has to remember to plug it in when he goes to the other room.

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