Win 2012 IP Conflict - Power Management Setting on servers (Possible resolution)

We are having Ip Conflict issues with alwaysOn SQL servers.Below is alert message from SCOM.

Alert description: The system detected an address conflict for IP address XX.XX.XXX.XX with the system
having network hardware address 08-55-56-92-3P-FC. Network operations on this system may
be disrupted as a result

Comment

There is no duplicate ip address on ARP Table. Looks like a failover event if not clearing itself up and throwing this warning.

Issues

It took Cluster Failover manager offline and caused availability group error,

Possible Solution

http://www.theemailadmin.com/2013/12/troubleshooting-dag-failovers-random-drops/

NIC have setting “Allow the computer to turn off this device to save power” is set, unless somone has a good reason we would want a server NIC to sleep I would suggest this setting be cleared.