Asking strangers on the internet is not going to help you.

If you can’t understand whose network it is, its like knocking on somebody elses door that you don’t know who they are or who is in there. Don’t do that. You don’t walk into people’s homes you don’t trust, and you don’t walk into Wifi’s you don’t trust too.

If the person you bought it from was frequently banned from certain multiplayer games, its entirely possible that they’ve been hwid/mac banned. If you find out you keep getting banned from multiplayer games with no reason why, this would be why.

I see it frequently in second hand computer buyers so i figured id warn ya.

Beyond that, reimage the machine, you don’t know what they’ve done with it, or what they’ve put on it. It’s your own fault if you use it bare as it is and get hacked without imaging.