I work in a bank ,and I have two agencies that connect using a dedicated line (Modem and router), the line is 256 Kbs, but all agencies computer are very slow. all of them with no exception, I suspect is network cad that is getting too much data, so a put a access list on the port. but tthe connection and computers still slow.. so i suspect that the line is not working at 256 ? there is any method that I can check the current speed opf the link ???