https://helpforum.sky.com/t5/Broadband/PON-Light-flashing/m-p/5283708#M568066 <P><a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4692799">@Stu8585</a>&nbsp;the Passive Optical Network light indicates the ONT is receiving an optical signal, it flashescwhen thecsignalmis present but it hasn't locked onto data feed and is solid when it has. If the fault cintinues report it yo Sky as they need to get Openreach of City Fibre to check the fibre feed. I had a similar fault a few months ago which was sorted by changing the ONT.</P> Wed, 27 May 2026 09:50:32 GMT Chrisee 2026-05-27T09:50:32Z https://helpforum.sky.com/t5/Broadband/PON-Light-flashing/m-p/5283655#M568051 <P>PON light flashing. Internet works fine in the morning then cuts out after a few hours and the PON light comes on. Tried restarting it several times with no luck</P> Wed, 27 May 2026 09:00:12 GMT https://helpforum.sky.com/t5/Broadband/PON-Light-flashing/m-p/5283655#M568051 Stu8585 2026-05-27T09:00:12Z https://helpforum.sky.com/t5/Broadband/PON-Light-flashing/m-p/5283708#M568066 <P><a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4692799">@Stu8585</a>&nbsp;the Passive Optical Network light indicates the ONT is receiving an optical signal, it flashescwhen thecsignalmis present but it hasn't locked onto data feed and is solid when it has. If the fault cintinues report it yo Sky as they need to get Openreach of City Fibre to check the fibre feed. I had a similar fault a few months ago which was sorted by changing the ONT.</P> Wed, 27 May 2026 09:50:32 GMT https://helpforum.sky.com/t5/Broadband/PON-Light-flashing/m-p/5283708#M568066 Chrisee 2026-05-27T09:50:32Z