Received following message: "Another device on the network is using your computer's IP address(xxx.xxx.x.x). How do I determine the other device? How serious this problem? How do you change IP addresses?
Received the following message "Another device on the network is using your computer's IP address(xxx.xxx.x.x). Try connecting later. If you continue to have problems, change the IP address of this computer or the IP address of the other device. Contact the network administrator if you need more information." How do I determine the other device using my IP address? How serious this problem? How do you change IP addresses?
iMac, OS X Yosemite (10.10.3)