This topic

FTTP - Red LOS light - what should I do?

besmirched — Tue, 06 Sep 2022 23:59:20 GMT

Had FTTP since 4th Aug and it’s been rock solid until this evening.

First noticed the SH2 flashing purple and lastly moved a unit out the way to get a good view of the Openreach modem. This is displaying a solid red LOS light - which I understand to stand for Loss of Service.

The FTTP installers never mentioned what to do should an issue arise. Should I just turn it off and on? Or does the LOS light mean there’s a fault outside with the BT/Openreach network?

Re: FTTP - Red LOS light - what should I do?

Keith_Beddoe — Wed, 07 Sep 2022 05:22:18 GMT

@besmirched

Most likely an external fault, so report it to BT on 0800 800 150.

Re: FTTP - Red LOS light - what should I do?

dombullion — Wed, 07 Sep 2022 11:39:33 GMT

speak to fibre team 08005874787

Re: FTTP - Red LOS light - what should I do?

besmirched — Thu, 08 Sep 2022 05:00:23 GMT

Thanks for the replies, I just left it alone and it did come back on within the hour of posting here.

There was some thunder and lightning around the time it went off so I presume it may just be weather related. Hopefully that's it anyway, as I used to have very frequent drops on FTTC, and I am hoping the FTTP install will have resolved that for the most part.

Re: FTTP - Red LOS light - what should I do?

Les-Gibson — Thu, 08 Sep 2022 06:35:33 GMT

Hopefully there won't be a next time but just in case there is BT Service Status | Check Broadband, Landline and TV | BT Help

Re: FTTP - Red LOS light - what should I do?

Ali_A — Mon, 24 Nov 2025 10:55:34 GMT

For any new visitors to this post -

If you have issues with the lights on your Hub (regardless of the model), you can visit What do the lights on my BT Hub mean?

This will give you information on what the lights mean, with hints, tips or advice on fixing the issue.

Thanks

Ali