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Forum Discussion
GS108LP switching works, power light is off, POE does not work
I have a GS108LP that works fine as a plain switch, but won't provide POE. I purchased it originally to use with a device that, as it turned out, required passive POE instead of 802.3af. So it's been used only as a regular switch, with no POE devices.
Today I attached a POE+ device (Reolink RLC840a) which, according to the specs, requires 802.3af power.
Here's what I see:
- The GS108LP operates normally as a switch with no issues. Traffic is forwarded at 1Gbps.
- When I initially apply power to the switch, all 8 left LEDs blink yellow, then go out, and then for all connected ports the left LEDs start flashing green, indicating activity.
- The main power LED does NOT illuminate, and the POE MAX LED is off as well.
I have tried several different ethernet cables, including the one that came with the camera.
I have tried with three different brand-new cameras (all RLC840a), with the same (non-functioning) result
Questions:
- Is it possible the GS108LP's implementation of the 802.3af standard is somehow different from Reolink's implementation?
- Is there anything else I can do to determine where the fault is?
3 Replies
I found a 12v power adapter and plugged in the camera.
The camera works when external power is provided, so I conclude the GS108LP is defective, and may have been defective from day one.
Tomorrow I'll have access to another POE switch (TrendNET) and will test with that one.
Hi jhg,
Welcome to the Community!
Thanks for sharing your findings. If the switch is powered via the included PA that came with it, it can power up to 60.5W max POE budget in all of its 8 ports that support both 802.3af and 802.3at. If the device continues not to supply power on several tested POE devices, we can presume that it is defective.
You can refer to the product installation guide for more information about the device LED and setup.
Kind regards,
BrianL
jhg wrote:
Here's what I see:
- The GS108LP operates normally as a switch with no issues. Traffic is forwarded at 1Gbps.
- When I initially apply power to the switch, all 8 left LEDs blink yellow, then go out, and then for all connected ports the left LEDs start flashing green, indicating activity.
- The main power LED does NOT illuminate, and the POE MAX LED is off as well.
BrianL wrote:
... If the device continues not to supply power on several tested POE devices, we can presume that it is defective....
The fact the Power LED is not coming on does certainly indicate some hardware issue.
Head to https://my.netgear.com/ , select the device in question, and follow the [Request Hardware Support] process.
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