okay....thats a good start.
Ive read all those threads you mentioned before posting this question.......
The globe arrow explanation is good.
The port forwarding - i thought it might be this.......so some questions:
1. What is a macOS box???
2. How do i set up port forwarding - im on a mac with broadband & an external
modem - "voyager 205 adsl"

3. If i change anything around , do i have to change it back again when i finish ??
4. If i port forward (whatever that is ?) will it effect my other internet use, like my
emails or surfing while amule is running ??
i'm a real newbee, so simple instructions work well !!!
thanks A BILLIONZZZ for your time
twzzzz