PoE port was denied power

[Timo3]

Hello toghether,

I have a Problem with a switch. All PoE Ports are orange and the message says "PoE port was denied power".

I found another topic here, were the problem was, that there were to many PoE devices on the switch.

But on this one, there is only one AP and one Phone.

Also under the power tab it says:

Any opinions? 

[MarcP]

power supply problem?

Tried to use another cable or socket? Maybe the switch is faulty and you need an RMA?

Was it working before?

[Timo3]

Maybe, that's hard to verify, because I don't have physical access to the switch.

Yes it was working, but a few days ago, the errors occur 😕

Maybe I have to send a field engineer...

[Timo3 · Accepted solution]

I have opened a case at Meraki. Without any further questions asked, I got this answer:

"Hello, Thank you for contacting Cisco Meraki Technical Support.

I have checked and indeed this switch seems to be faulty, so we would like to initiate an RMA for the device identified with the issue."

So, thanks for your help and have a nice day.

[AjitKumar]

Awesome.. Kudos to Meraki Support Team. .

[MarcP]

ha, as assumed 😉

[Timo3]

A few hours before the switch was to be replaced, the electricity meter at the customer was changed. Thus, the customer had no power at short notice. When the FE arrived, he called me to ask what was broken. I checked the dashboard and said "nothing at all". The reboot would have been enough. The switch was replaced anyway.

So, if anyone got this problem, reboot the switch and if the problem still exists call the meraki support.

[redsector]

Hi,

I got the same problem today with an MS250-48LP. There is no exceeding power consumption.

The error suddenly appeared.

I opened a case.

[cmr]

@redsector what os version are you running?  We have some of those switches and I'm hoping the same doesn't happen to us...

[redsector]

10.45

[cmr]

Thanks @redsector , just for information we are running 11.22 on that model of switch.

[redsector]

I had this problem twice in 6 months (at amount of about 60 Meraki switches), once on a MS225-48LP and now on a MS250-48LP.

I opened a case. They were asking some things, but couldn´t help. A reboot solved the problem. I asked the service to escalate the problem, I don´t think its an hardware error. I think its a software bug. Sometimes a counter seems to overflow under some circumstances.

[Hoptroll]

This just happened to me. Had an MS225-48LP that was part of a two switch stack deny power to all PoE devices that were plugged into it. When looking at the Power tab, it was showing 0W/0W budgeted and consumed. The other switch in this stack was still OK. A reboot fixed it and when the PoE devices came back online, it was only showing 54W/370W Consumption with 200w/370 Budgeted.

Firmware is 11.22

[cmr]

Maybe time to go for 11:25 then, but not before the Bank holiday...

[redsector]

This is the answer from the Merki cupport:

It is possible that this is a software issue. However, if that was the case we would need to understand what triggers it and be able to reproduce it.

What I'd suggest in this case is monitor your network and if this happens again, let us know.

We can RMA the device as well to see if the issue persists with a new device, then it would be something that is triggered from your environment.

Please let me know how you wish to proceed.

Thank you,

[JoRett]

I also would recommend to update. 11.22 was the cause of a lot of problems with my switches.

The Beta 11.25 is still the latest version since a month.

[AjitKumar]

Hi,

How about firmware update?

You may also check the following thread with a similar issue solution provided by @PhilipDAth.

https://community.meraki.com/t5/Switching/MS250-poe-port-was-denied-power/m-p/9233#M633

[Timo3]

Unfortunately that's not as easy as it sounds.

The switch is in a template with around 400 other switches.

And the thread you mentioned is the one that I saw already.

[redsector]

Reboot helps, switch change is too much work.

I had this issue on two of our MS225-48LP switches version MS10.45, after reboot the error didn´t appear again.

Don´t update to 11.22. Too much problems. Wait for a stable version!

[mr-butcher]

I just had the same Issue. I opened a ticket at meraki support and they told me, that it's a bug in 11.27. After upgrading the switch to 11.29, PoE functionality was successfully restored.