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I am using a debian stretch live i386 gnome iso image with non-free firmware that I have booted from my usb, and I can find my wifi network but I am unable to connect after entering my password. There is nothing wrong with the password or router, as I was able to login and use wifi from this pc. I do not have an ethernet cable, so I have no internet connection on debian and therefore cannot install the necessary firmware via sources.list (let me know if there is a way to do this w/o internet though).

Is there a way for me to download the necessary firmware onto my usb from Microsoft Windows? My wifi driver is RT3572, and I am using a Lenovo Ideapad 100S with an intel processor.

Any help is greatly appreciated!

If I need to, I will just go out and get an ethernet cable.

marked as duplicate by GAD3R, G-Man, Jeff Schaller, Stephen Rauch, Romeo Ninov Nov 4 '17 at 5:13

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