topic Re: IP Address 0.0.0.0 on the list in Wireless

IP Address 0.0.0.0 on the list

VRB1 — Wed, 02 Jul 2025 08:55:19 GMT

What is the possible cause of this 0.0.0.0 IP address? When I try to check these devices, they have already transferred to another AP. We also have scenarios where they seem to degrade the internet connection on the current access point, especially when some are using Zoom calls. We found some faulty APs in this scenario and resolved them by rebooting. Most of these affected APs are those near the hallways where a lot of users pass by. I have tried to lower the power of these APs from 30max to just 20db in 2.4Ghz radio, and am still observing if it will be solved. This is a campus setup, so we have lots of users roaming around on our 800+ APs.

Re: IP Address 0.0.0.0 on the list

aleabrahao — Wed, 02 Jul 2025 09:52:16 GMT

This usually indicates that the client device was unable to obtain a DHCP lease or lost its IP address while roaming or disconnecting.

As for the issue of failures with Zoom, it could be due to high channel utilization, for example.

Here are some links that may be useful for troubleshooting.

https://documentation.meraki.com/MR/Wi-Fi_Basics_and_Best_Practices/Tools_for_Troubleshooting_Poor_Wireless_Performance

https://documentation.meraki.com/MR/Wireless_Troubleshooting/Wireless_Issue_Resolution_Guide

Re: IP Address 0.0.0.0 on the list

Pavithran-Chelladurai — Wed, 02 Jul 2025 10:46:53 GMT

clients are unable to reach the DHCP server or DHCP server is not responding to the request.
If there is no dhcp response , client will get 0.0.0.0 ip address.

Re: IP Address 0.0.0.0 on the list

Philip D'Ath — Wed, 02 Jul 2025 20:11:24 GMT

If you know it only happens with one AP - check the switch port configuration that the AP plugs into, and compare it to other known working APs.

Re: IP Address 0.0.0.0 on the list

VRB1 — Wed, 16 Jul 2025 01:05:40 GMT

We are using Meraki's local DHCP. Most of these APs with lots of zero IP's are installed in common hallways where a lot of clients just pass by. I'm thinking maybe due to their fast movement, since they just passed by, they were not given any IP addresses.