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36 votes

Ethernet connection between rooms doesn't work: LEDs 2, 3 and 4 don't blink on cable tester

Don't crimp male connectors (plugs) onto the end of permanently installed ethernet cables. Ever. It is easier and much more reliable to punch down cables onto jacks, either individual jacks or a patch ...
manassehkatz-Moving 2 Codidact's user avatar
33 votes

Confused about Ethernet wiring in new home

Read the jacket - I think I can see, but not make out, faint red printing on at least two of the gray cables in your picture. But there's no guarantee that all the gray cables are the same, if this ...
Ecnerwal's user avatar
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32 votes
Accepted

Running fiber line

Some days I'm surprised to wake up and realize that I have lived in the same house for more than 30 years. (Other days, I'm just surprised to wake up.) Regardless, the very first time I thought about ...
aghast's user avatar
  • 1,806
25 votes

Find which ends of cat5e cables belong together

Yes there are specialized tools for that. Search for "tone generator and probe" or "wire tracer" or similar phrases. (image credit: grainger.com, fiberoptics4sale.com) However, ...
Greg Hill's user avatar
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24 votes
Accepted

How can I use existing satellite coaxial cable to carry my internet connection?

To answer your question, what you are looking for is a MoCA (Multimedia over Coax Alliance) adapter. It will allow you to media convert from ethernet to coax. IMHO, I would run new ethernet cable as ...
beswald's user avatar
  • 621
23 votes

Running fiber line

Typically the company (cable or telecom) will run the fiber to one location and provide an Ethernet connection at that location. Sometimes a little more complex - e.g., Verizon will typically install ...
manassehkatz-Moving 2 Codidact's user avatar
22 votes

I just moved to a new place and was wondering if this meant it had Ethernet jacks?

No, but what you have might be usable. The jacks, at least the ones where you show the back with the screw terminals, but probably the other ones as well, are standard 4-wire phone jacks, which can ...
manassehkatz-Moving 2 Codidact's user avatar
17 votes
Accepted

Can I re-terminate this ISDN connector to an RJ45 connector?

Just off-hand, that looks like Cat 3 to me. That was likely an old ISDN BRI circuit (2 concurrent phone lines or one datastream at 128 Kb/s if you bound them). That said, you could probably re-...
Chris O's user avatar
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15 votes
Accepted

Any reason not to put a structured wiring enclosure directly next to the house main breaker box?

Wire access space. When you plant something near the breaker box, you can't then enter the breaker box from the area blocked by that something. You are going to be blocking off (what sounds like) a ...
Ecnerwal's user avatar
  • 220k
14 votes

Running wires down an internal wall of house

This is what a "fish tape" is for. image courtesy of lowes.com. No endorsement intended or implied Go back to the "loft" where you were pulling and push the end of the fish tape ...
FreeMan's user avatar
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13 votes

Find which ends of cat5e cables belong together

There's a good answer already for use of technology, both low and high. If there's enough cable to see what directions the foot markings are going, and they only used one box of cable, you can also ...
Ecnerwal's user avatar
  • 220k
13 votes

Can I re-terminate this ISDN connector to an RJ45 connector?

One reason that you were limited to 100Mbps is that each jack only has two pairs (4 wires) connected. Gigabit requires all four pairs. As for if it will support Gigabit, unless you can find markings ...
DoxyLover's user avatar
  • 12.8k
13 votes

How can I make use of Cat 5e cabling in my home?

If you want to also use the wiring for telephones then it gets a bit more complicated. That's because in ye olden times only two pairs were used for Ethernet so it was trivially easy to use one or two ...
manassehkatz-Moving 2 Codidact's user avatar
12 votes

I just moved to a new place and was wondering if this meant it had Ethernet jacks?

The top one is a DSL splitter Digital Subscriber Line/Loop (DSL) is a way to get internet off plain old telephone service. Also known as ADSL, ADSL2, VDSL, VDSL2, etc. The sound of the DSL traffic ...
Harper - Reinstate Monica's user avatar
10 votes

Ethernet connection between rooms doesn't work: LEDs 2, 3 and 4 don't blink on cable tester

T-568A vs T-568B doesn’t matter, as long as both ends use the same termination. They just switch a couple of pairs. If lights aren’t flashing on your tester, then you have open connections. Probably ...
DoxyLover's user avatar
  • 12.8k
10 votes

How can I use existing satellite coaxial cable to carry my internet connection?

Wifi gets me to 800Mbps. Excellent, this isn't good enough?? You could try getting a better WiFi router. FWIW, I have gigabit fiber Internet and I cannot achieve the full 1000 when hardlined. I think ...
MonkeyZeus's user avatar
  • 16.7k
10 votes

How can I make use of Cat 5e cabling in my home?

You appear to have 3 or 4 Cat5e cables. If you have 3 or 4 phone jacks, you might be in luck, and all you need to do is terminate the cables onto Cat5e (or Cat6, if there's no upcharge on the jack ...
Ecnerwal's user avatar
  • 220k
9 votes
Accepted

Can anyone suggest how to connect a CAT6 cable to the incoming 5 pair telephone cable?

Each of the incoming pairs in the telco's 5-pair cable is for a separate analog telephone line (or, in today's world, a single DSL channel). The pairs are identified by color: there's a solid blue ...
Greg Hill's user avatar
  • 31.3k
9 votes

Confused about Ethernet wiring in new home

This was clearly being used as telephone wiring. Even if some of the cables are ethernet cables they have been cut and spliced for phone use and there may be splices hidden in the walls similar to ...
jay613's user avatar
  • 40.7k
9 votes

Running wires down an internal wall of house

In my experience (and I run network wires for a living) you'll almost certainly end up needing to open walls, unless you are in some ancient balloon-framed house that's not burned down yet. Modern ...
Ecnerwal's user avatar
  • 220k
8 votes

Confused about Ethernet wiring in new home

The grey stuff is often non-twisted pair, or unshielded twisted pair. As others have said, read the label. The blue stuff could be cat 3 or cat 5, but unless you have access to both ends, it's a crap ...
Sherwood Botsford's user avatar
8 votes

Can I re-terminate this ISDN connector to an RJ45 connector?

The ordering of wires follows the T568B standard, so you might be able to get two breakout boards connected to jacks and simply replace the termination of the wires using the order that they are ...
gbronner's user avatar
  • 5,698
8 votes
Accepted

Can I run CAT6A and 12/3 AC90 armoured power cable inside the same watertight PVC conduit for about 5m/16Ft?

The method that I'm fairly sure no code anywhere would have an issue with is to use all dielectric (nothing electrically conductive) fiber optic network cable here, and choose switches at the ends of ...
Ecnerwal's user avatar
  • 220k
8 votes

Network dropout when wall furnace fan switches speeds

I think you need to find out which part of the "pipeline" is being interrupted. Internet link to router (the cable session) Router itself Wired or wireless link to device (TV/Fire stick) ...
Criggie's user avatar
  • 10.8k
7 votes

Confused about Ethernet wiring in new home

The wiring workmanship shown here, no matter what the cable type is, cannot be relied on to yield satisfactory ethernet operation. The way twisted pairs are untwisted for several inches, with the ...
rackandboneman's user avatar
7 votes

Running fiber line

I agree with manassehkatz that generally the internet is going to come into your house and it be will be on an exterior wall. It will be terminated there and the isp will provide a router/modem that ...
Fresh Codemonger's user avatar
7 votes

Network dropout when wall furnace fan switches speeds

"I don't think it's a wifi/radio interference issue." It most likely is RF interference, propagating along the power line, or even radiated by a piece of wire as short as a few cm. To prove ...
DrMoishe Pippik's user avatar
6 votes

Ethernet connection between rooms doesn't work: LEDs 2, 3 and 4 don't blink on cable tester

As someone who has run a lot of Ethernet, here's my general "pins are out" checklist Crimped ends are notorious for having pins out. I've developed a methodology to make it relatively ...
Machavity's user avatar
  • 25.3k
6 votes

How can I use existing satellite coaxial cable to carry my internet connection?

I just bought a house with the same situation, coax but no Ethernet. I bought pairs of these: Deca 100mbps Ethernet to Coax adapter: https://www.newegg.com/p/1BV-0034-00006 Basically puts Ethernet ...
Triplefault's user avatar
  • 8,212
6 votes

How can I use existing satellite coaxial cable to carry my internet connection?

To run ethernet over coax you indeed need an "adapter" such as MoCa which converts ethernet into radio signals. This is explained well in the other answers. One may be tempted to use the ...
P2000's user avatar
  • 16k

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