Hi I have a BSNL broadband connection and i am using Huawei SmartAx MT882 modem with my laptop which has winxp pro. So far i have only used the ethernet connection. Can i use the modem even when there is not power? if i can use the USB port, will i still need power to use the modem? If no, then how can i do it? I have installed the necessary driver for it. Thanks for any response