I believe the problem will be worked around best if I prevent Windows computers
attempting to detect duplicate IP addresses. Since we maintain tight control
over our DHCP and we don't make a habit of issuing duplicate addresses, there
shouldn't be much reason for Windows to keep searching for duplicates on the
network. Within a few days I will know if the problem is permanently resolved.
Following recommendation from Cisco, and instruction from Microsoft, I created
a group policy to disable "Gratuitous ARP" on all windows computers.
http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/8021x/116529-problemsolution-product-00.html
"The final method that is used in order to workaround the issue that is
described in this document is to disable duplicate-address detection on the
client-side. This procedure is described in the How to Disable the Gratuitous
ARP Function<http://support.microsoft.com/kb/219374/en-us> Microsoft
Support-Base article. Centrally deploy this change in order to make this option
more scalable."
Thank you,
Michael R. Haag
Computer Services Technician
Department of Information Technology
Madison County, NY
(315) 366-2204
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