Discussion topic: Openreach ONT has a red LOS light
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Message posted on 31 Jul 2026 09:12 PM
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Openreach ONT has a red LOS light
My Openreach ONT has a red LOS light immediately after power-on, the PON light never comes on, and my Sky Max Hub is pulsing green. I have tried to restart it by turning it off for 30 seconds and turning it back on again but it still not working.
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Message posted on 31 Jul 2026 09:41 PM
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Re: Openreach ONT has a red LOS light
Try running this line test to see if it finds any faults:
https://www.sky.com/help/articles/broadband-diagnostic-start
You can also run the test via the MySky app on a mobile data connection.
After this has finished and if it reports back all is good click on broadband to run an updated test. If you get amber or red please follow the on screen instructions.
If someone has helped you then please click on the LIKES button in their post.
If you need help please provide as much information as you can
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