I worked on both of these questions:
Unable to connect to the internet via ethernet (using a pppoe) , though it works via wi-fi
Connecting cable/fibre internet using PPPoE in Ubuntu
It's become clear to me through the users comments that they are confusing data they posted on the first question with that posted on the second question. This leads me to believe that it's the same person with 2 accounts. What is the correct course of action to take in this case?