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No connection after power cut

Scotford14 — Fri, 07 Feb 2025 20:16:15 GMT

Evening all, so today we had a power cut and have now lost the fibre connection. I've spoken to BT who are sending out a new hub on Monday. However doing some research I'm wondering if it could be the open reach box. The PON light is off permanently. I'll try to explain the series of lights.

Openreach box; Power green, port 1 slow flashing green.

Hub; solid orange

After around a minute or so

Openreach box; power still green, all 4 port lights flash green once

Hub; 3 flashes purple

This then repeats over and over.

Any ideas please. Thanks James.

Re: No connection after power cut

gg30340 — Fri, 07 Feb 2025 20:57:47 GMT

See links

https://www.bt.com/help/landline/lights-on-the-openreach-modem

https://www.bt.com/help/broadband/fix-a-problem/broadband-and-wi-fi/what-do-the-lights-on-my-bt-hub-mean-

Re: No connection after power cut

iniltous — Fri, 07 Feb 2025 21:28:02 GMT

The ONT should have the PON light lit , steady green , if it’s flashing green there is no authentication at the headend ( but an optical oath exists) if it’s off the LOS ( loss of signal ) would normally be on ( so no ‘light’ or insufficient light level bring received, so a physical issue, broken fibre for example ) , your symptoms don’t seem follow this normal pattern, basically the PON light or LOS light should be on , so your ONT may be faulty….try powering cycle or full reset , but it may need replacing….