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Discussion topic: PON flashing
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This message was authored by: Jeff_Fid
Message posted on 30 Apr 2026 06:53 PM
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PON flashing
The PON light is flashing on my ONT but there is no LOS light which indicates the issue is at your end. I have turned both ONT and Router off. This fixed the issue for a couple of hours but now it's happened again and rebooting doesn't work.
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This message was authored by: caesarome
Posted by a Superuser, not a Sky employee.
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Message posted on 30 Apr 2026 07:32 PM
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Re: PON flashing
As you are talking to other customers here you will either need to run a line test or phone Sky about this:
https://www.sky.com/help/articles/broadband-diagnostic-start
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If you need help please provide as much information as you can
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