Hi josecmourao,
Thanks for posting and welcome to the community.
So sorry to see you're facing broadband issues.
I can see from looking at your account that you have a technician appointment booked in, let us know how that goes and if it resolves your issue for you.
Also can I ask whether you are using a CAT6 cable to connect your device to your router? Anything lower will not be able to support the 1Gig capabilities of your speed.
Thanks,
Kain