I am using Telus too. About a week ago, my Internet was dropped to 30K from 300K. I thought it was caused by Telus. Then after I reset all my devices - like router, DSL modem and my machines, the Internet speed was back to normal.
Yes, you are right. I experience the same problem last night and the download rate is less then 30K. It seems something wrong with Telus network.
Nothing we can do so far.