Fibre slowed to a crawl

[Ryoma2040]

My connection went through a spurt of disconnects on Tuesday and Wednesday and now has slowed to a crawl. It's still occasionally disconnecting too but the speed (up and down) has never gone back to normal since.

I've done all of the usual checks and tests and it's no better. 

[Debbie-TalkTalk]

Hi Ryoma2040

I'm really sorry to hear this.

I've completed a line test and this has detected a potential line fault.

Are you experiencing any noise on the line when making calls?

Is the router at the test socket at the moment?