Hi @Jo2 Welcome to the forum and thanks for your posts about your broadband connection.
Have you got an engineer appointment already? If not and the problem is still persisting then we will be happy to help you if you send us your details. You can contact us by clicking on my user name and selecting contact the mods.
Hi @Jo2 and thanks for posting.
It certainly sounds like something isn't right here. We'll need to take a closer look so can you please send over your details? You'll get the contact the moderators link in my profile.