Hi there is not alot a tech can do for speed issues all we can do is check the levels at the modem and check the reverse path .By doing 192.168.100.1 and check the upstream .Do a trace route to a uk website if the ubr is at max you will see lag on the first hop which is the ubr .See thread Licoln Prob as they are having touble whith high packet loss and slow speeds.There is not a great deal we can do but for some fault reps its the easy way to get you off the phone by booking a tech
(Only some reps do this
)I use ping plotter its free for 30 days i leave the pc on running this its quit a staight forward program to run and show you packet loss