My last house had all my phone lines connected together in one place. I thought, perfect, I’ll put a gigabit switch here! I removed the ethernet wires, put ethernet heads on them, then went throughout my whole house doing the same at every phone jack. I got an ethernet cable tester. Not a single one worked. I could get the occational partial connections, but no full connection. I made a few ethernet cables just to make sure I wan’t doing it wrong, and they worked fine.
There may be another explaination as to what I saw, but I tried for several days trying to get ethernet throughout the house to no avail.
Some electricians will lazily splice in the wall an steal 2 pairs for another phone jack, like the guy above was saying. It’s very annoying, not exactly common, but does happen.
Though typically if that’s the case you’ll have multiple rj11 heads on the same wire at the head end.
My last house had all my phone lines connected together in one place. I thought, perfect, I’ll put a gigabit switch here! I removed the ethernet wires, put ethernet heads on them, then went throughout my whole house doing the same at every phone jack. I got an ethernet cable tester. Not a single one worked. I could get the occational partial connections, but no full connection. I made a few ethernet cables just to make sure I wan’t doing it wrong, and they worked fine.
There may be another explaination as to what I saw, but I tried for several days trying to get ethernet throughout the house to no avail.
Your phone lines were cat3.
You can technically get 10mbps, or in short runs, 100 mbps. Most NICs don’t even negotiate 10baseT.
And hence, why it wasn’t working.
Some electricians will lazily splice in the wall an steal 2 pairs for another phone jack, like the guy above was saying. It’s very annoying, not exactly common, but does happen.
Though typically if that’s the case you’ll have multiple rj11 heads on the same wire at the head end.