Gearheadotaku
Gearheadotaku GRM+ Memberand UltimaDork
3/31/20 8:48 p.m.

So one of my stay at home projects is getting internet signal to my TV's.

Moved my modem/router to the basement and plugged into the CAT 5E wires I ran years ago when I remodeled the house. Office and living room working good, but bedroom has no signal. Here the fun part: the cable tests good. Tried different devices and plugging into a different port on the modem/router but still nothing. Put new plugs on the wire, tests good, still no signal.  Wire is not accessible so replacement is not possible.

Ideas?

Dr. Hess
Dr. Hess MegaDork
3/31/20 9:12 p.m.

How are you testing the cable? 

Gearheadotaku
Gearheadotaku GRM+ Memberand UltimaDork
3/31/20 9:16 p.m.

There is a unit that plugs into each end and communicates down the cable. There are 8 lights, one for each wire. 8 lights on? Everything is intact.

Steve_Jones
Steve_Jones Reader
3/31/20 9:37 p.m.

Turn the WiFi off on the tv so it looks for the cable input. 

matthewmcl
matthewmcl Reader
3/31/20 9:39 p.m.

Crossover vs. Straight? Both are used so the box might say either is correct.

Stampie
Stampie GRM+ Memberand UltimaDork
3/31/20 10:04 p.m.

Try another known working Ethernet device like one of the other tvs that works.  Ethernet tends to be one of the most common fried things in an electrical surge.  Not only are they not designed for higher voltage but you're also bridging different circuits in the house with the cat5.

 

1988RedT2
1988RedT2 MegaDork
4/1/20 6:43 a.m.

How long is the run?

pinchvalve
pinchvalve MegaDork
4/1/20 8:38 a.m.

This may be no help, but my mother had a similar issue. She moved her computer to clean under the desk and after plugging everything back in, no signal from the ethernet. The wire was buried in the walls, so a replacement was not an option. I tested everything at both ends and could not see why it wasn't working. (no test equip for the wire itself though).

Then Mom says "oh that wire was so hard to get out of the computer. I pulled and pulled and yanked on it before I noticed the little tab you have to push to release it." DOH! The wires were connected to the plug, but pulled back a few mm so they were no longer making contact with the terminals. I cut it off and wired in a new one and told mom to let me handle things from now on.

Gearheadotaku
Gearheadotaku GRM+ Memberand UltimaDork
4/1/20 9:14 a.m.

To answer the above questions:

Wi-Fi is shut off, was never used.

Its about a 40 foot run, the office is further.

Crossover vs straight? Don't know what that means.

Plugged the TV into the office port and it worked. Tried the computer on the bedroom port and still nothing.

The0retical
The0retical UberDork
4/1/20 9:34 a.m.

In reply to Gearheadotaku :

Crossover cables (or rollover cables if you're old) are used when you need to do a host to host connection without a router or switch.

Check that pairs in the wall are wired in the same pattern at both ends (eg: Fig A 568A to 568A or Fig A 568B to 568B.) You could have a pair swapped at the jack which the tester would show as having continuity, but it wouldn't pass data.

 

Gearheadotaku
Gearheadotaku GRM+ Memberand UltimaDork
4/1/20 11:35 a.m.

I'm using 568A straight pattern. Thanks for the explanation! Will recheck the wall socket tonight.

Gearheadotaku
Gearheadotaku GRM+ Memberand UltimaDork
4/1/20 6:54 p.m.

Fixed!

Found a box between the modem and TV plug I had forgotten about. The connection inside was set up for phone, not data so all the colors were together. Connected everything properly and everything works.

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