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another device on the network is using your computer's IP address

when I tried to connect internet with my iMac, it shows that "another device on the network is using your computer's IP address". How can I solve this problem? thanks

iMac 24″, macOS 12.1

Posted on Feb 12, 2022 6:42 PM

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Question marked as Top-ranking reply

Posted on Feb 12, 2022 9:22 PM

This is most likely due to your router assigning the same local IP address twice. You can get your iMac to ask for a new IP address.


Go to System Preferences > Network > Advanced > TCP/IP

and click the button saying Renew DHCP lease.

2 replies

another device on the network is using your computer's IP address

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