Magikmoose: I have had this issue twice this week - had not happened before this. Last time it happened was the 12th - pulling the dsl line did not restore speed but rebooting router resolved. Kills download speed but router sync speed remains constant.
Using a WAG54GP2V2. I will monitor and log fault with HD if this happens again.
Cheers.
That means it is your modem, not your ISP. Pulling out the line will force renegociation of the connection. Rebooting the modem will clear any junk/corruption in the modem.