Kenneth Porter wrote:

>Could you have a rogue server? Make sure it's getting the lease from the 
>correct server. Try running Wireshark on the client.

The log on the server shows it received DHCPREQUEST for the old address
without a preceding DHCPDISCOVER.

BUT... I have discovered that the Internet security device on the network
is also running a DHCP server. My guess is that it is interfering with
the process, possibly responding with an offer for the old address before
the PC sends DHCPREQUEST. A classic race condition.

I don't manage that device so I'll have to request the necessary change.
If things start working after that, I'll post a followup.

Thanks for all the advice.
-- 
         Dave Close, Compata, Irvine CA       +1 714 434 7359
       d...@compata.com              dhcl...@alumni.caltech.edu
            "There are conditions of blindness so voluntary
             that they become complicity." -- Paul Bourget


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