topic Access point has an ethernet negotiation failure in Wireless

Access point has an ethernet negotiation failure

ATS55 — Tue, 26 Sep 2023 15:35:38 GMT

Hello everyone,

I receive a message on Alert Hub that says "Access point has an ethernet negotiation failure" and it shows me the APs name related to this error message. My APs are all MR33, but only 4 APs are added to this error message.

Anybody has had the same issue?

Any comments?

Thank you

Re: Access point has an ethernet negotiation failure

Raphael_L — Tue, 26 Sep 2023 15:45:36 GMT

Have you seen any link negotiation issues on your switch ?

Re: Access point has an ethernet negotiation failure

Macguy1 — Tue, 26 Sep 2023 16:52:43 GMT

I just saw 8 Access Points on my Alert Hub with same message. Various AP models along with both Aruba and Meraki switches. Tried forcing 1Gb Full Duplex (didn't work) on switch. I'm going to try and get to one of the buildings tomorrow. Upon looking at port history, seems like this ethernet negotiation has been an issue. Maybe this alert setting was just added to the Alert Hub? Not sure. Will post follow up tomorrow.

Re: Access point has an ethernet negotiation failure

Philip D'Ath — Tue, 26 Sep 2023 18:08:43 GMT

What is the AP set to? auto/auto I hope?

What is the switch port set to? auto/auto I hope.

What speed and duplex are they reporting?

If you have a Meraki switch, do a cable test. What does it report?

Re: Access point has an ethernet negotiation failure

Macguy1 — Tue, 26 Sep 2023 18:34:34 GMT

In my case Auto for both... Cable tests pass on Meraki switch. Reporting 100Mbps, should be 1Gbps. I'm going to do more testing tomorrow.

Re: Access point has an ethernet negotiation failure

ATS55 — Tue, 26 Sep 2023 20:47:15 GMT

In my case the ports on the switches are set to auto negotiation. They passed 1 Gigabit and now they are passing 100 Megabit. I restart one of the APs and it didn't help. The issue is happening on different locations (of course different switches, too). Now, I have the alert on 8 APs. It seems the issue is spreading.

Re: Access point has an ethernet negotiation failure

DainBrammage — Tue, 26 Sep 2023 22:12:55 GMT

You can't set speed and duplex from one side it has to be set the same on both sides. auto/auto or hardcoded same on each side

As @Philip D'Ath stated:

"What is the AP set to? auto/auto I hope?"

"What is the switch port set to? auto/auto I hope."

Re: Access point has an ethernet negotiation failure

Macguy1 — Wed, 27 Sep 2023 12:10:23 GMT

So this is super weird. Went to my elementary school, took AP negotiating at 100Mbps down. Plugged into my Mac laptop and instantly got connected at 1Gbps. I grabbed a spare MR46 and plugged that in with same cable. It connected/negotiated at 1Gbps. Left MR46 in classroom. Took the MR56 down to my IT office and connected to port on desk (connected to different Meraki Switch) and negotiated at 100Mbps. Going to open case with Meraki as it seems in my first example here it is the AP not cabling. I have seven more AP's like this to diagnose.

UPDATE - On phone with Meraki support and before doing an RMA we decided to do a factory reset on the AP. Sure enough, the AP remained stable and connected at 1Gbps after. I'll post updates with the other AP's accordingly.

Re: Access point has an ethernet negotiation failure

ATS55 — Wed, 27 Sep 2023 13:55:08 GMT

I have checked that on the AP's local configuration (through my.meraki.com) and Meraki dashboard setting, but I didn't see any where I can change link speed. The only setting I'm able to change is on switch port setting. I will be happy if anybody shares their info where we can have access to the setting @sd3 mentioned.

Re: Access point has an ethernet negotiation failure

Bill61 — Wed, 27 Sep 2023 14:41:46 GMT

We are having the same problem as OP

Re: Access point has an ethernet negotiation failure

DainBrammage — Wed, 27 Sep 2023 17:27:41 GMT

My comments about speed and duplex are in general.

https://documentation.meraki.com/MR/Other_Topics/Port_Link_Speed_of_Cisco_Meraki_Access_Points

Re: Access point has an ethernet negotiation failure

agreen2 — Thu, 28 Sep 2023 14:25:21 GMT

Having the same issue on four MR46 and MR52 access points. I can confirm that factory reset has fixed three out of the four.

Re: Access point has an ethernet negotiation failure

Raphael_L — Thu, 28 Sep 2023 15:18:47 GMT

We have 5K MR33/MR36. Actually 55 of them are negotiating at 100Mbps. However , all my cases are related to bad cabling ( did a cable test on every single one ).

So, have you tried doing a cable test as suggested by Phil earlier ?

Re: Access point has an ethernet negotiation failure

randallfjackson — Thu, 28 Sep 2023 18:16:15 GMT

We are also seeing this suddenly. We are running firmware 30.5 om MR46 WAPs. Could this be a firmware issue?

Re: Access point has an ethernet negotiation failure

regz20 — Thu, 28 Sep 2023 18:18:47 GMT

Where do you initiate a factory reset? Meraki or to the switch port?

Re: Access point has an ethernet negotiation failure

agreen2 — Thu, 28 Sep 2023 18:20:18 GMT

Mine are on MR29.5.1

Re: Access point has an ethernet negotiation failure

Raphael_L — Thu, 28 Sep 2023 18:22:45 GMT

On the AP.

https://documentation.meraki.com/General_Administration/Support/Resetting_Cisco_Meraki_Devices_to_Factory_Defaults#:~:text=To%20reset%20a%20switch%20to,local%20configuration%20of%20the%20device.

Re: Access point has an ethernet negotiation failure

agreen2 — Thu, 28 Sep 2023 18:23:18 GMT

There's a reset button on the access point itself. It's usually next to the network port. You'll need something pointy. Leave it powered on, press the reset button for 5 seconds, it will reboot and reset.

Re: Access point has an ethernet negotiation failure

Macguy1 — Thu, 28 Sep 2023 18:23:51 GMT

Don't think so... I have 29.5.1 and 29.7 with various AP models.

Re: Access point has an ethernet negotiation failure

Bill61 — Thu, 28 Sep 2023 18:24:26 GMT

I opened a ticket and was told this is a known issue and our ticket was added to the list. I would recommend anyone having this issue do the same. It was recommended to us that we roll back to the version 28 firmware, so Merakii did that for us and I haven't seen the problem since.