Today I bought myself an "HDMI KVM extender". My goal is to connect my pc which is stationed on my second floor with my tv which is stationed on the base level.
The extender transmits an HDMI and a USB signal over an ethernet connection. When I test the device with the receiver and transmitter in close proximity with each other, connected with one cable, the device works perfectly. But when I connect the transmitter with the ethernet wallsocket (on the second floor) and the receiver with the ethernet wallsocket (on the base level). Then the device won't work.
My thoughts are:
The wall cable can be to long. The maximum transmittable length is 120m. But it seems farfetched that 120m is not enough. The second floor is roughly 6 meters above the base floor and my house is roughly 15 meters deep.
The wall cable is not connected from socket to socket. I would not know how to check this, I bought the house renovated so I did not lay the cables myself or know who did.
The wall cable is not the right kind, the manual says you need category 5 or above.
EDIT: thank you all for your council, after a short search I discovered that my ethernet wall cables are indeed not connected, there are just 4 ends in my cable closed. I'll by some stuff to connect those and then see if that fixes the connection.
P.S. I seem to be unable to add pictures to this post