Fix Windows Has Detected An IP Address Conflict In Windows 10 | Windows101Tricks | Scoop.it
From windows101tricks.com - September 13, 2017 1:03 PM

If Two different computers have assigned same IP Address when they’re either on Local Area Network or on the web windows will Show IP Address conflict Error to fix This first Reboot your router, Release and Renew IP Address, Assign IP address manually, disable IPv6 Run Network Troubleshooting Tool https://windows101tricks.com/fix-windows-has-detected-an-ip-address-conflict/