In Window is simple:
1) I create a a new connection (RDS) as PPPoE and configure with username and password.
2) I have a wireless access point tp-link I plug my cable and my laptop is connected on wireless
3)To make the connection available I simple click on connection RDS (I am connected to wireless) and everything is OK.
How to make this connection work on Ubuntu?
I make a new connection with my username and password and named it RDS and I am connected to my wireless access point but how to make my internet to work?