How to Change the IP Address on iPhone by Renewing the Lease
Take the following steps to request a new IP address for your iPhone from your router:
Open the Settings app. In the Settings screen, tap Wi-Fi. A list of available networks appears. The one you’re currently connected to has a blue checkmark. Tap the Information (i) icon to the right of the network name. Various data points and settings for your active Wi-Fi network appear. Tap Renew Lease. Tap Renew Lease again at the bottom of the screen.
How to Enter a Static IP Address on Your iPhone
You can also manually change the IP address on your iPhone. However, you must have control over your Wi-Fi router (or have a static IP from a network administrator). Follow these instructions to enter a static IP address for your iOS device:
Open the Settings app. In the Settings screen, tap Wi-Fi. A list of nearby networks appears. The one you’re connected to is noted with a blue checkmark. Tap the Information (i) icon to the right of the network name. Tap Configure IP. Tap Manual. A new section labeled Manual IP displays. Enter your static IP address and its corresponding Subnet Mask and Router address.
How to Change Your iPhone’s IP Address Through VPN
Most VPN services assign a different IP address to your iPhone each time you establish a new connection. If you use a VPN, disconnect and reconnect to the internet for a new IP address.
