I have an inconveniently-placed phone jack in my office, so I am running a 10m phone cable from the wall jack to the modem, which is on my desk.
Consequently, I have a very short ethernet cable between the modem and the computer. I know that within reason, the length of the ethernet cable does not make a difference.
My question is: would my connection be significantly faster if I moved the modem and used a short, high-quality phone cable between the modem and the wall?