Cant connect to server

I recently told my brother to join the SMP since its extremely fun, but the thing is, whenever i try registering for him on his computer, it always says that theres alrewady an account under the user fazeplayz90101s, which is my account. i want to know if its IP related or because its a bug, since my brothers account and my account share the same IP.

We don’t allow multiple accounts on our server. Please read the rules here: https://lksmp.fun/rules. However, you can request an account by sending your brother’s username and email via DM: https://community.lksmp.fun/private.php?...send&uid=1. Do not use that account to abuse the game doing so will result in a ban.