Access Points Disconnecting and Dropping Off Completely

cliffatSwift
Comes here often

Access Points Disconnecting and Dropping Off Completely

This issue started around the beginning of 2025. It is affecting multiple locations throughout the US with different Meraki AP models (MR42, MR44, CW91641, etc.).

 

What appears to be taking place is gradually the AP will start losing its “up-stream” connection with the Meraki cloud and will eventually drop-off completely.

Each of our APs would receive this message.

cliffatSwift_0-1742480283679.png

 

Initially, we were told by Meraki TAC to make sure that the Meraki IP’s and TCP/UDP ports were open on our firewall, and our firewall engineers verified that they were. But this didn’t make any sense to us, since “up-stream” traffic does not pass through the firewall. There’s no need to have outgoing traffic past through a firewall.

 

After much discussion with our engineers, it appears that the Meraki cloud is having issues with recognizing our "Up-stream" DHCP IP communication.

 

I know this to be true, because I have implemented a temporary work-around using a “Static IP” on the APs having this issue. Once implemented, our APs came back online and are still operating fine for the past 4 weeks.

 

Does the Meraki team have a solution that will address this specific issue?

3 Replies 3
Mloraditch
Kind of a big deal

It sounds like your APs are having trouble getting/renewing DHCP, if they work fine static. I would be checking your DHCP servers logs, doing packet captures of dhcp requests/responses and maybe testing on the same vlan with a laptop.

If you found this post helpful, please give it Kudos. If my answer solves your problem please click Accept as Solution so others can benefit from it.
PhilipDAth
Kind of a big deal
Kind of a big deal

> since “up-stream” traffic does not pass through the firewall.

 

Upstream traffic to the Meraki cloud will need to pass through the firewall.

alemabrahao
Kind of a big deal

+ 1 to check DHCP

I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.

Please, if this post was useful, leave your kudos and mark it as solved.
Get notified when there are additional replies to this discussion.