What Network settings to backup

I would like to redo my computer but I had someone else set up my home network. I would like to know what files to backup so that when I am finished reinstalling everything on my computer I can restore the way my network is set up so it will work. I have Direcway satellite internet which I had a hard time finding someone to set it up for me for it to work as the Direcway that I have does not have a ethernet connection, it is USB.

Is there a way to backup up these settings or files so I just have to restore them when I get back computer formatted and windows reinstalled?