Click the Settings icon.
Click Wi-Fi.
Next to the name of the Wi-Fi network that you want to set the IP address for, click the blue i.
Click the Static tab.
In the IP Address field, enter the new static IP address.
If necessary, repeat steps 4 and 5 for the Subnet Mask and Router fields.
To save the changes, click the Wi-Fi networks icon.
Note: If you are changing your IP address to access a specific device, repeat steps 1 to 3, and then click the DHCP tab to access the Internet again.