Streamyx is having slowdowns on its international link especially in the KL and Negeri Sembilan area according to their automated announcement on their TM phone support.
However it does seem to be a nationwide problem with customers in Penang and Sarawak also reporting slowdowns.
Kedah also may be affected as per the following notice:
29 Jan 2009 SERVICE INTERRUPTION
Telekom Malaysia Berhad (TM) would like to inform its customers at Taman Bersatu, Arau, Kedah that its Streamyx service at the area is currently experiencing a disruption of service due to a cable breakdown caused by third party contractors. Hence, residents at the affected area will not be able to utilize their telephony or Internet services.
We have performed testing on our VPN and seedbox servers to rule out a problem on our end.