Thank you all for your feedback!
I have a recent PC and everything is up to date. All my USB ports work, including the front ones. Downloading the drivers didn't change anything. Before, I could connect my device, but now, when I plug it in, I get the following message: "The connected cable is not compatible with traffic information." Does it just charge afterward ?
Finally, I used 3 different cables. Do you think the problem could be with the cables ? Thanks.