I have two RJ45 outlets in one wall plate, labelled B-01 and B-02. An analog phone that worked for several years when connected via B-01 failed spontaneously; a quick test shows that it now works reliably via B-02 but cannot be persuaded to work via B-01. And yet, a PC with a gigabit Ethernet connection still works via either, and the TDR cable fault tester in the local network switch returns identical results for both. What am I missing? [more inside]
What kind of ethernet-looking cable is this? [more inside]
VDSL2: We'd like to bridge two 100Mbps LANs together. They are located at buildings approximately 600 meters apart by cable distance. I've found a few VDSL2 Ethernet bridge products that will do 90/70Mbps full duplex on 24 AWG POTS phone wiring at 600 meters. Wireless point to point links are not an option. [more inside]
So I have ethernet ports in every room, and I'd like to somehow hook up the internet to them. Any advice? [more inside]
An electrician doing some work for my employer has taken a standard 4 pair cat5 cable and split off from each of the 8 wires to feed 2 different wall mounted ethernet jacks. Should this work? So far, it isn't. One jack appears electrically inert, the other will register a link, but I can't ping or get a DHCP reply through it.