IP conflict with two or more devices, but single MAC address

[AndreasE]

Hi all,

a few mins ago I've received the following mail from Meraki:

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The security appliance in the <xyz> network has detected an IP conflict with two or more devices.

The IP 10.23.180.69 is claimed by clients with the following MAC addresses: 00:0D:AC:10:F6:7D

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Any idea how that may happen?

Regards,

AE

[Ben]

Are u sure you are viewing the complete email? 

When I get these the format is as following

The IP x.x.x.x is claimed by clients with the following MAC addresses: <mac address1>   <mac address2>    

[AndreasE]

Yes, I'm pretty sure, checked twice.

(I just removed the hyperlinks from the post)

[AndreasE]

so it's worth opening a case?