Fortnite ban? - 4

For about a month I've been kicked out of the game "Fortnite" after about two to three minutes. The reasons for this can be different (see picture), but I think that it is a hardware ban because I have already tried everything else. I don't know where the ban came from as I never did anything with hacking. However, my brother downloaded a few questionable things a few months ago, but the problem with the kick has only recently appeared.

I have already uninstalled the game several times, "changed" my HWID on my hard drive (to trick the game), and ran all my documents through anti-virus / anti-malware software. The only thing I can think of now would be to reset my hard drive. Unfortunately that would be very annoying for me because I never did a backup or anything else. So the question arises, are there any other suggestions or ideas to fix this?

Turn your router off and on

https://geekguide.de/fortnite-ein-problem-ist-aufgetreten-was-tun/