I used a 3G broadband modem. I usually would be able to get a download speed of 40 - 60 kbps when i still used windows. but it seems ubuntu has a way of restricting downloads to 15kbps. this happens for streaming sites ( youtube), synaptics/apt-get. The only way for me to avi.
Modem model: Huawei EC226, CDMA2000 EV-DO REV.A, USB MODEM, FCC ID: QISEC226
Computer model: HP dv5 and HP dv4