Guys, if use xunlei to download for a certain time and then suddenly your PC is disconnected from the internet (the PC only, the other PCs sharing the same connection can still online) and then need to reconnect to the router to get back online, how to fix this?

Helping my housemate to ask... plus she downloads all the stuff and I watch using file sharing. Kinda troublesome if she keeps on reconnect when I am watching a movie, lolz.