[KB3430] Identical IP addresses detected in network


  • You receive the notification "Duplicate IP addresses on network" 
  • You have multiple devices (for example, your computer and a phone or printer) on your network that are attempting to use the same IP address
  • Set up an IDS exception
  • Change the IP address


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If multiple devices are using the same IP address, at least one device will not be able to connect to the internet.


Set up an IDS exception

In cases where there are duplicate IP addresses on the network, set up an IDS exception.

Change the IP address

Users can manually change the IP address associated with the computer.

Reset the router

To reset the router, unplug the router, wait 30 seconds and then plug the router back in. If the IP address does not automatically change, renew the IP address.

Renew the IP address
  1. Click Start, type Command Prompt, and then click Command Prompt.

    • Windows 8 users: Press the Windows key + Q to open an app search, type cmd into the Search field and press Enter.

  2. Type the following command and press Enter.

    ipconfig /release
  3. Type the following command and press Enter.

    ipconfig /renew

After your IP address is renewed, you should no longer receive notifications about identical IP addresses.