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

redsector
Head in the Cloud

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

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?

3 Replies 3
sinelnyyk
Meraki Employee
Meraki Employee

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.

If you found this post helpful, please give it kudos. If my answer solved your problem, click "accept as solution" so that others can benefit from it.
redsector
Head in the Cloud

It is no cloud problem, other accesspoints in the same network have no issues, also the cable is good, I changed it and tested it. When the accessport goes offline how can I do a packet capture? The accesspoint is offline! No packets then running through the cabel. I opened a case. I am a IT professional and this first level questions don´t help because I am not stupid.

sinelnyyk
Meraki Employee
Meraki Employee

Hi @redsector,

Please let's try to be respectful here. I'm not trying to accuse you of anything, just trying to help since I saw noone replying to your request.

Based on my experience, packet capture is the step that helps in most cases to understand whether there is some traffic on the link or not, and mostly people forget about this step. You can collect them on the upstream device, not the AP which is offline, as I mentioned in my comment: "If your AP is connected to Meraki device upstream, you can leverage Dashboard Packet Capture utility to collect pcaps.". Obviously this applies to any other devices upstream that are capable of collecting pcaps.

If you found this post helpful, please give it kudos. If my answer solved your problem, click "accept as solution" so that others can benefit from it.
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