Ethernet & Phone Line Switch Setup in New Home with Comcast Internet not working?

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minhestrone

minhestrone

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Nov 25, 2012
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10,510
I just moved into a new home with what looks like a main switch for ethernet and phone lines to each individual room. However, I can’t get the switch to work with my new Comcast cable internet.

Internet works with:

(main line > modem > computer)
(main line > modem > router > computer)
(main line > modem > router >(wirelessly) computer)

but not with

(main line > modem > switch > computer)
(main line > modem > router > switch > computer)

I’ve never used a switch before but I assume the cable goes from the modem to the “IN” of the switch, with a cable from one of the outputs to computer, unless I’m wrong.

Here’s are some images:

IMG_1390_zpsa8d02331.jpg
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IMG_8913_zpsacf59a49.jpg
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IMG_2354_zpsda4bdae2.jpg
[/URL][/img]
 
Solution
USAFRet
OK - did not see the images initially

The 'Telephone Interface Module', with the "In" appears to be the phone/alarm system, NOT ethernet.
RJ31 is generally for alarm systems.

So:
You would go thusly (I think):
Modem -> router -> existing 8 port 10/100 switch (middle image) -> other devices plugged into that switch.

Whoever wired this should have supplied a detailed schematic of exactly what it does. I'm in the middle of planning the wiring of a house, and whoever gets it next will have a full schematic of where everything is.
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USAFRet

USAFRet

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Moderator
Mar 16, 2013
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184,590
Without knowing more about the house wiring, it is hard to say.

But generally how it works is:
ISP -> modem -> router -> devices*

* Devices may include one or more switches, and computers hanging off of that.

This:
(main line  modem  router  computer)

should work exactly the same as this:
(main line  modem  router  switch  computer)
 
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minhestrone

minhestrone

Honorable
Nov 25, 2012
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0
10,510
It SHOULD but it doesn't work. Is this home system any different from a typical consumer switch? I connected the ISP line to "IN" (as shown in picture). I thought it was as simple as that.
 
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USAFRet

USAFRet

Titan
Moderator
Mar 16, 2013
171,795
18,138
184,590
OK - did not see the images initially

The 'Telephone Interface Module', with the "In" appears to be the phone/alarm system, NOT ethernet.
RJ31 is generally for alarm systems.

So:
You would go thusly (I think):
Modem -> router -> existing 8 port 10/100 switch (middle image) -> other devices plugged into that switch.

Whoever wired this should have supplied a detailed schematic of exactly what it does. I'm in the middle of planning the wiring of a house, and whoever gets it next will have a full schematic of where everything is.
 
Upvote 0 Downvote
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