For the past 2 weeks my download speed is very low..
At first i thought it was due to international server problem,but that is not the real thing..
For the past few days I test my internet speed and i found something suspicions..

When ever I start to download a file from an international server , i'll get full speed but after few minutes (maybe around 30 minutes) the speed will drop drastically until 5kb - 20kb..

But when i use my internet for surfing purpose only,nothing happen..
My speed is normal and I can surf website without any problem..
The problem only arise when i start to download a file from any servers(mu,fileserve,etc)..