Apple doesn't allow there users to edit the Access Point settings for their carriers but for your wireless networks you can edit it as you like without having any type of problem. So if you are having some sort of problems with UpnP, or you’re having problems with DHCP, assigning a static IP may help you fix your problem a real quick. Assigning a static IP to your iOS device is just a piece of cake. Today in this tutorial I am going to guide you how you can fix your problem.
Assigning a Static IP Address
This method will work on every version of iOS including the latest versions iOS7 and 8, and it will also work with all the iDevices including iPad, iPhone and iPod Touch.
Locate and open “Settings” from the home screen.
Select your WiFi connection.
Tap the “i” to the right of your network.
Tap on the “Static” button.
Enter your desired static IP address. And close the network settings.
You are now using static IP address on your iOS device. Leave your feedback below if you have any type of problem.