I have an ethernet wall socket in one room which is wired to another ethernet wall socket in another room.
Everything appears to be connected up correctly, but it does not appear to be functioning.
Here are photos of the wiring.
Room 1 Wiring
Room 2 Wiring
What I have tried
Room 1 has the internet router. An ethernet cable connects the router to the ethernet wall socket.
Room 2 has a laptop. An ethernet cable connects the laptop to the ethernet wall socket.
If I connect the laptop directly to the internet router, it can browse the internet.
If I connect the laptop to a internet router via said ethernet wall socket, it does not work.
I have used a multimeter to check that each colored wire is properly seated in its socket. I touched the tip of the probe to the end of the wire, and the tip of the other probe to the two cutters that go through the insulation to the wire underneath.
It works perfectly now, after following the answer by @Dwayne Reid.
This practical example has helped me understand more about the physics that run our world.
9 months on, and it's still working solidly. @Dwayne Reid and @Charles Cowie, thank you again!
Over 2 years later, and it's still working brilliantly. @Dwayne Reid and @Charles Cowie, if I could buy you a beer, I would!