Can I get internet from Rj11 to Rj45 jack?

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EireSionnach

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Apr 15, 2015
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Hi I just got a pc and I want to connect it to my internet through wires but the only wall cord in my a room is a 5inch long Rj11 phone jack cord sticking out of the wall alone. I was wondering if i can just plug that into my Ethernet extender then plug a Ethernet cord into that and it would work as internet for my pc?
 
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USAFRet

USAFRet

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No, it doesn't work like that. What is on the other end of that RJ-11 jack? I'm assuming the phone company.
 
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EireSionnach

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Yea Are there like adapters for the Rj-11 jack to the Rj-45 jack (ethernet)?
 
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USAFRet

USAFRet

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Still unsure of what you're trying to get.
The RJ-11 jack is presenting a phone signal, not an ethernet signal. You have to contact someone (a local ISP) and pay them to deliver an internet signal to your house.
Where do you live?
 
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boosted1g

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There are adapters but they wont work how you are wanting.

First of all rj11 only has 4 wires, rj45 has 8. Now you only need 4 wires for 100mbps speed on rj45 but next you run into the infrastructure issue.
RJ45 - Ethernet - uses a point to point type setup. You must use a different cable for every connection. So you can only plug port 3 into 1 computer, and only plug port 4 into one computer, and so on.
Thus you run a completely separate cable to each and every port.
RJ11 - Phone - is a point to multipoint setup. Your phone line comes into your house from the phone company and then either has a splitter connected to it, or it daisy chains from one outlet to the other.
Thus the data from the phone is tied into all phone ports.


Now if you have a newer home that has rj45 ran to each rj11 jack (so not daisy chained), then you can find the termination point where all the wires come together, and modify it to do what you want.

EDITED:

Also, the wiring has to be RJ45, you cant use RJ11 wiring for data. Data requires twisted pair wiring to avoid interference (2 pairs of wires twisted together throughout the entire cable. Trying to pass Ethernet data on phone cord for more then 5ft would result in complete failure
 
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EireSionnach

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boosted1g

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IF AND ONLY IF your phone jacks have a single RJ45 cable ran to each jack, and then all of those individual cables run to a termination point where there is a phone punch block, then you could modify the cabling to be RJ45.

If it is not RJ45 then Ethernet data will not work on that type of cable.
If the phone-outlets are daisy chained then it also will not work.

I would suggest powerline network adapter
 
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