Hmm go in options (preferences in os x) and press the restore defaults button. apply and restart LW. Redo the magnetmix test. What is your max dl speed? Can you do the test there
http://www.broadbandreports.com/stest to see your max speed up and down in Kb/s? To convert to KB/s (what LW uses divide the Kb/s per 8).
Ciao
(Salut Stief
)