kingclutch98 wrote:
what does that mean? we share a family mac...
This ...
Internet Protocol
An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing.
basically, it doesn't matter how many people log in from that mac/pc they will all share the same IP, so your brother needs to either get his own PC or use the one in the internet cafe.