topic Re: TV loses connection in Full Fibre

TV loses connection

JH98 — Wed, 15 Jul 2026 09:52:23 GMT

Hi. I have an old smart TV and BT youview box. They are in the same room as the router and attached by ethernet cable. I am constantly getting a pop up saying 'Can't detect your broadband' followed a minute later by, internet restored. It's only a problem if watching I player or similar because it stops/ buffers or even loses the programme.
I had the same problem with my previous provider Cuckoo, which is why I switched providers.
Is it my TV or Youview box? Or the connection into the house which Plusnet did not change?
I have checked ethernet connection.
Laptop and phones don't seem to have any problem.
Would love some advice before I shell out for a new TV.

Re: TV loses connection

jab1 — Wed, 15 Jul 2026 09:59:23 GMT

@JH98 From your comments above, I would be suspecting either the YV box or your TV, but beyond that I would not like to speculate.

Re: TV loses connection

PhilipHeyes — Wed, 15 Jul 2026 10:00:58 GMT

ethernet cable faults often look like an intermittent connection

Re: TV loses connection

Ian06 — Wed, 15 Jul 2026 10:25:29 GMT

@JH98 As @PhilipHeyes says have you tried changing the ethernet cables between the router and TV/YouView box..? Cheaper to try that first before assuming you need a new TV.... also worth changing the ports used on the router just in case of damage to the connectors...

Re: TV loses connection

JH98 — Wed, 15 Jul 2026 10:27:31 GMT

Thanks I will try a new cable and let you know.

Re: TV loses connection

Baldrick1 — Wed, 15 Jul 2026 11:17:44 GMT

@JH98

You say you have a smart TV and a BT youview box. Are these two separate items, each with their own Ethernet cable or is the TV getting its streaming services through the BT box, rather than using its own smart features?

Can you confirm that you have a Full Fibre connection, not something slower? What speed are you getting with a wired connection to the laptop?

Re: TV loses connection

JH98 — Mon, 20 Jul 2026 17:34:05 GMT

I've put a new cable from youview box to router and so far seems to be working.
Thanks to everyone for the help