lease limit 1 and Apple Mac Computers creates duplicate IP address

Glenn Satchell glenn.satchell at
Wed Sep 18 03:57:49 UTC 2013

Make sure you have "authoritative yes;" set in those scopes so the server
can send a DHCPNAK to the client. Not sure if this will help, but worth


On Wed, September 18, 2013 5:46 am, Matt Jenkins wrote:
> Any known work around? Like have the DHCP server respond with no ip
> available instead of no response?
> On 09/14/2013 12:26 PM, Chris Buxton wrote:
>> On Sep 12, 2013, at 4:11 PM, Matt Jenkins <matt at>
>> wrote:
>>> I can reproduce both of the following situations. All result in a
>>> duplicate IP address issues. All appear to be the fault of Apple Mac
>>> OS. Has anyone else ever seen this or found a fix for it?
>>> 4. Apple computer connects and is unable to get a lease. It then
>>> assigns itself the original IP address it had. Now there is an IP
>>> conflict.
>> Yup. It's an Apple thing.
>> Regards,
>> Chris Buxton
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