While OS X, with access to the command line and more disclosure in the Network System Preferences, almost nails the details, it's less straightforward with an iPad (or iPhone). But there are a few technical wrinkles to be aware of. While still in the Terminal from the root account, type ifconfig ethX up (again, where X is the Ethernet adapter you are looking to renew, usually eth0).Finding the IPv6 address of your Mac or iPad isn't extremely difficult.Type ifconfig ethX down (X is the Ethernet adapter you are looking to release, usually eth0).Enter the Terminal from the root account.

To renew your IP address, you’ll need to use Terminal to first release, and then renew the IP. Once the command is run you can check if DHCP has set properly by determining DHCP info with the same ipconfig command with ‘getpacket’ like so:

Let’s say it’s en0, standard for modern Macs with wi-fi only. If you know the device interface (en0, en1, en2, etc), just run that command to release and then renew DHCP for the determined device. The basic syntax to renew DHCP lease from the command line with ipconfig is as follows:

Click OK to exit the Advanced window, and then exit System Preferences.Ī restart may be required to complete the process.

If you aren’t, or if you selected Wi-Fi, click the TCP/IP tab heading.

If you selected Ethernet, you should already be in the TCP/IP tab heading.

In most cases it will either be Ethernet or Wi-Fi.

Select your method of connecting to the internet.

Click the Network icon in the Internet and Network section.

Click the Apple button and choose System Preferences.

To release and renew your IP address in Mac OS X, you’ll use the Network system preferences to renew the DHCP Lease.

Type ipconfig /renew to get a new IP address.Ī restart may be required to complete the process.

At the flashing cursor, type ipconfig /release.

Enter your admin username and password, if prompted.

Right-click the Start menu and select Command Prompt (Admin).

To access and renew your IP address, you’ll need to open a command prompt. In all but the rarest cases, you’ll have a static IP address and can proceed.

This is usually reserved for servers, and not your standard desktop or laptop. Please Start a Conversation for assistance. A word of caution: if your setup requires a static IP address, meaning that your IP address never changes, this guide is not for you. You can release and renew the device IP address manually. Sometimes the first step in troubleshooting IP problems is to try to get a new IP address and validate your device is 'talking' on the network. This guide will show you how to release your IP address. If you can’t access your email or the Internet, it may be possible that you are experiencing problems getting an IP address.

Get public ip address mac terminal