I have got an AirStream TM 1100 WiMAX USB Adapter. It works without any drivers on a PC using Ubuntu but will not work on my Raspberry Pi. The kztech.cn website does not provide any drivers for the device. Could anybody help me install it?
Insufficient RPi and USB power supply?
The normal RPi PSU and USB port might not have enough power/current for a USB modem. Maybe try it through a powered USB hub or at least a higher current RPi PSU. I have a Nexus 7 PSU that is 2A it sorted a few problems out.