MS130-24P & MR46

[AY2022]

Good y'all.

I'm currently having some issue with these above 2 models.

When the MR46 are plugged into the switchports, none of MR46 power up. No lights whatsoever on the switchports / MR. Cable test seems to be good (all 4 pairs lights up and correct).

However, when the MR are plugged into a MX75, the MR power up and comes online..

Switch currently on MS16.9.

Anyone has similar setup? 

[GIdenJoe]

That means your MS130 is not supplying power to the AP's.
Make sure PoE is enabled on the ports.

[AY2022]

By default POE is already enabled.

And power usage is just 7.82 W / 370 W.

Btw it's only 3 WAPs.

Anything else to check? 

[GIdenJoe]

I know it's the default but check the port configs anyway 😉
Maybe even put them on PoE disabled and back on enabled after a minute.
You should also check on the status of the switch to see the little lightning bolts on the switchports where you connected the AP's.

[ww]

try reboot the switch.

If it still doesn't work after reboot contact support.

[AY2022]

Checked the switchport physically and there is no light at all. Also rebooted the switch many times.

Also tested with other POE device and the same ports work i.e. power + connectivity.

Forgot to mention this is a new RMA unit. 

Now I wondering, is there a difference in the way the 4 pairs of wires (network cable) is used?

Why the same MR works on MX75 but not the MS. Coz testing with a basic network tester shows no error. 

[GIdenJoe]

The normal EIA/TIA 568.A or B should work.
Normally in 802.3af and at only the blue and brown pairs are used to provide power.  So if your cables are fully wired up it should be ok.

Can you show a screenshot of one port configuration and perhaps a picture of the front of your switch?

[DavidC1]

Same issue here but only with 802.3af devices, 802.3at works as expected. Meraki support confirmed to me that it is a known problem and that they are working on it but have no resolution timeframe. when I told them that this problem is impacting the business of the company I work for, they simply stopped responding and never contacted me again.

[MattW-KentOil]

I know this is an older post but i had 3 MS130-48P stop providing power after a FW update, one of them didnt even have any devices plugged in to it besides the MX, went to the site 2 days later to get the MR up and the PoE was dead.

I think its a hardware failure.

[AY2022]

Hi there.

With your reply, it kinda strengthen my assumption. Coz until now (even after RMA) mine still doesn't really power up the WAP on the ceiling. But then when its connected using a patch cable in front of the 130, it works fine. Right now we are arranging to have the cable over the ceiling replaced as its the only thing that makes sense at this time (old cabling). 

[Munoz]

This sounds like a layer 1 issue. What is the cable type and length? Also, Have you mapped the cable? 

[jumbojake]

Are you utilizing Combined Power? I ran into a similar issue, and in my case, it turned out to be a hardware problem with the MS not offering PoE one any ports regardless of configuration. I’d recommend opening a support ticket with Meraki — they were able to confirm the fault and issue an RMA.