I'm using BSNL 3G USB Datacard(BSNL is a ISP in India). After connecting to internet, while browsing in browser, the connection is dying. So after disconnecting & connecting back, it works proper for some time & the same problem repeats. But if I'm downloading any movie or some file through uTorrent, the connection is not dying. I'm experiencing this problem in Vista & also in Ubuntu. Help me with this please. Thank you.