MR46 and MR46E issues with firmware MR 31.1.5.1, accesspoints go offlione and don´t come up any more

[redsector]

Hello,

I am encountering the following problem for a few weeks. Meraki MR46 and MR46E (firmware MR 31.1.5.1) accesspoints go suddenly offline and sometimes I can get them up when I shut the switchport and then enble it after a minute. sometimes the accesspoints stay dead, they are abroad so I can´t have a look at them. Sometimes they come up after many hours from alone. I have no power-saving or switchport-portschedule configured. No issues with MR42, CW9164I and other accesspoints.

Anyone with the same behaviour?

[sinelnyyk]

Hi @redsector,

Firstly it is important to understand whether an issue is only with cloud connectivity, or clients are also affected. If when the AP is offline clients can still connect to it, then the issue would be related only to the management traffic.

In both cases, once you identified the scope, I would recommend collecting packet captures on the switch port where the problematic AP is connected and filter by the AP MAC address with "eth.addr == {AP_mac}" filter. In the pcaps pay attention to any DHCP, ARP and/or DNS messages. If any of the above is not replied, investigate in this direction.

Based on my experience, this is usually caused by DHCP issues, but pcaps will definitely be useful here.

If your AP is connected to Meraki device upstream, you can leverage Dashboard Packet Capture utility to collect pcaps.