Connection is offered , dial up and broadband, thru modem, when I´m actually connected by cable...

Like the modem port doesn´t know there is a network port beside it.
All the time it happens, each window I open sometimes, and besides, the
internet explorer keep on telling me i´m working offline and I have to
disable this option.
It´s very annoying... Is there anything I can do?

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SergioAAraujo