Ubuntu Networking :: Internet With A Pppoe DLS Connection Does Not Work

i have a routed and a PPPoE type internet connection, recently i tried a thing in terminal with the pppoeconf option since the network manager has problems with connectiong to the internet with a pppoe DLS connection, or anyway in my case it does not work. Ok i did the pppoeconf thing i inserted my pass and my user and left the program to do its thing, ok it all worked fine but then i restarted my system and suddenly the network manager did not want to recognize my network it hat as options some weird ipupdown options for connection and when i tried the pppoeconf thing again it did not work. what could i do to reactivate at least one way my connection, if i understood correctly the terminal type connecting and the network manager are two different things. now i am using my router and it should connect but the network manager still does not see the connection.