Using two DSL jacks to make one network?

omninano · Jun 20, 2018

Hi! I'm still pretty new to networking, so I appreciate the help and bearing with me

I have two phone jacks with DSL in my house (one on one side, one on the other). I have one set up with a modem plugged into it and then a router plugged into that which broadcasts WiFi to my house. However, I also own a second modem and router.

I was wondering if it is possible to plug the second modem and second router into the other DSL phone jack on the other side of the house and then configure it so that it acts as one seamless network. E.g. you don't have to disconnect from one network and connect to another when walking across the house, it just seems as if you are staying on one wireless signal.

Is this possible? And how do I do it? Thanks so much for the help!

jojesa · Jun 20, 2018

omninano :

Hi! I'm still pretty new to networking, so I appreciate the help and bearing with me

I have two phone jacks with DSL in my house (one on one side, one on the other). I have one set up with a modem plugged into it and then a router plugged into that which broadcasts WiFi to my house. However, I also own a second modem and router.

I was wondering if it is possible to plug the second modem and second router into the other DSL phone jack on the other side of the house and then configure it so that it acts as one seamless network. E.g. you don't have to disconnect from one network and connect to another when walking across the house, it just seems as if you are staying on one wireless signal.

Is this possible? And how do I do it? Thanks so much for the help!

Read this guide on how to connect two DSL modems to a phone line.

stdragon · Jun 20, 2018

Assuming you have two DSL accounts and their on their own physical phone line, then the following below holds true.

As long as the WiFi SSIDs are the same, yes, you can have two WiFi routers setup, each attached to their own dedicated DSL modem. But be warned that computers that are on separate routers will NOT talk to each other. That includes WiFi printing as well if it's on the other router too. If all you're attempting to do is spread the load among devices that just communicate to the Internet, and not internally via a LAN, then this should work.

That all said, I think it's rather wasteful to pay for two separate DSL accounts. What you really want is either an increase in bandwidth subscription, a WiFi mesh network, or both.

stdragon · Jun 20, 2018

Also worth clarifying - DSL goes over a single twisted pair. In most homes, you've got a POTS (Plain Old Telephone Service) line that contains two separate twisted pair (total of four wires). Back in the day of analog phone service, when you had two phone lines, each line had to be on its own twisted pair. DSL is no different. You can have two DSL modems with their own account, but they MUST be on their own twisted pair and be provisioned by the provider to allow for it. You can NOT have two different DSL modems sharing the same line.

failboat · Jun 21, 2018

It's not going to work if you don't pay for it. Even if they did give you 2 ips it would share the bandwidth of the 1 account you have.

omninano · Jun 21, 2018

So pretty much it is not easily possible to use this method to boost a WiFi signal. Ah well, guess I'll go out and get a long LAN cable instead. Thanks guys!

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Using two DSL jacks to make one network?

omninano

Commendable

failboat

jojesa

Glorious

stdragon

Admirable

stdragon

Admirable

failboat

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omninano

Commendable

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