topic Re: New Setup not working in Broadband

New Setup not working

pilotb — Thu, 02 Oct 2025 17:12:04 GMT

I moved into a new build and this is the Open Reach set up. There is no DSL cable but I understand the yellow ethernet is meant to replace that, but I connected that to port 4 on the sky hub and it doesn't connect. There is also a cable already attached that can't be removed but it doesn't connect anywhere on the sky hub, isn't that where the fibre cable should be? Can someone help me please

Re: New Setup not working

peter-marlow+1966 — Thu, 02 Oct 2025 17:39:04 GMT

Th cable goes into the port on the hub marked wan for full fibre, I have a sky max wifi hub

Re: New Setup not working

peter-marlow+1966 — Thu, 02 Oct 2025 17:45:26 GMT

You should have 3 yellow lights flashing on the optical network terminal box it looks like you have a red light in your photo which surjusts you my have a break in the cable it is hard to see clearly from your photo I know the photo that I am showing on is a different looking optical network terminal box but it should be simpler to your

as you can see i have 3 yellow lights on my o n t

Re: New Setup not working

pilotb — Thu, 02 Oct 2025 17:53:09 GMT

I can't see the photo you attached 😞 but also i don't have a port in my hub for that fibre cable, mines a normal sky broadband hub. what do you mean by i may have a cable break? something in the wall

setup?

Re: New Setup not working

JimM1 — Thu, 02 Oct 2025 18:32:24 GMT

@pilotb The picture off you holding up the Sky Broadband Hub, yellow connected cable ends on the black cable to port 4, you should see the 2 Green lights on that port, LHS solid Green, RHS flashes with data to the ONT!

First picture with the RED lights looks more like a BBU unit and that is not where the Ethernet cable connects. butter front on picture is required, and coiled up fibre green connector looks like your ONT is not there!

Re: New Setup not working

pilotb — Thu, 02 Oct 2025 18:27:37 GMT

yes that's my current setup, but the lights on the open reach hub stay like this they don't change

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 18:34:46 GMT

@pilotb

That's an interestingly complex setup.

The first thing to note is that the device you've plugged the ethernet into isn't any kind of 'hub': it's the Battery Backup Unit for an Openreach ONT (which appears to be in one of the other images)

Re: New Setup not working

JimM1 — Thu, 02 Oct 2025 18:37:39 GMT

@pilotb Get that yellow/black Ethernet cable out off the BBU unit IT DOES NOT GO THERE!

If the BBU is not functional as indicating, then you need to replace the Four batteries in the unit, that is your responsability to do!

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 18:38:32 GMT

@pilotb

It looks like the ONT may be the device on the left in here:

A clearer picture of that would be useful.

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 18:40:19 GMT

@pilotb

Or it could be the missing device which was once in the space here (note the mounting screws) :

Re: New Setup not working

JimM1 — Thu, 02 Oct 2025 18:39:12 GMT

@TimmyBGood Think the Green plug is for the ONT and it's NOT there at all!

Re: New Setup not working

JimM1 — Thu, 02 Oct 2025 18:44:48 GMT

@pilotb With the Ethernet cables all hanging loose, and the fixing screw's would GO more with there used to be an 8 Port switch that has been removed and now gone, those cables all go out to points in other rooms! ? New build but you are not the first owner!

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 18:44:17 GMT

@JimM1 wrote:

If the BBU is not functional as indicating, then you need to replace the Four batteries in the unit, that is your responsability to do!

That doesn't affect the broadband connection itself though: it just lights up a rather misleading fault LED.

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 18:48:27 GMT

@JimM1 wrote:

@TimmyBGood Think the Green plug is for the ONT and it's NOT there at all!

There appears to be a green optical jack plug inserted into the partly concealed box, and perhaps another one laying loose below it.

I'd agree that it's probably an ethernet switch missing to the left of the BBU.

The whole setup appears to have been customised: I haven't seen a BBU and ONT that far apart before.

Re: New Setup not working

pilotb — Thu, 02 Oct 2025 18:55:31 GMT

thank you @TimmyBGood @JimM1 i definitely have to buy one then. is it just a a generic one like this that i need or is there any requirement i need to keep in mind?

Re: New Setup not working

JimM1 — Thu, 02 Oct 2025 18:59:01 GMT

@pilotb Outside the two cabinet's that square below you are blocking with the holding off the sky hub, can you picture that front on as it could be an ONT there!

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 19:00:07 GMT

@pilotb

The ethernet switch isn't required to get the broadband connection working, and that should really be the priority.

Personally when purchasing switches I prefer brands I've heard of: my preference is Netgear models with a metal case.

Re: New Setup not working

pilotb — Thu, 02 Oct 2025 19:01:27 GMT

it's there but sealed no cable can be attached, just a loose string coming out

Re: New Setup not working

TimmyBGood — Thu, 02 Oct 2025 19:02:32 GMT

@pilotb

It's the device on the left here that I'm interested in:

Re: New Setup not working

pilotb — Thu, 02 Oct 2025 19:04:02 GMT

@TimmyBGood this one?