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Fiber Optical Network Unit.

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Why it is not lit?

Why It is doing its job by giving access to an internet connection (good download speed,and very slow upload speed) despite that its light(power , PON , LAN,LOS...) are all off?I tried trning it on and off and it is still the same.

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That little hole in front might be a reset button access. Not sure what that will do. It could be the LEDs burned out. I have had that happen on a different device. I guess if it is fully functional without the LEDs I would just ignore it.

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We'll see tomorrow.My isp will check it tomorrow.It might be from the router too.I'll update you

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I would be surprised to see the router can't talk to the gateway and turn off the LEDs.

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Something was wrong with the cable between the ONU and the router(it was struck by a lightning).Thanks for the help!

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Jack H 将永远感激不已
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