Maintenance was performed on the 15th of this month to resolve the problems you mentioned. If you have experienced slow speeds since, then please send me your MAC address and public IP (»
whatismyip.com) via private message.
Also, download and install PingPlotter Pro (free trial), run a trace to a destination you experience a problem to for 24 hours. Then rclick -> save sample set, and attach the file to this thread for further analysis.