To set options when Cellular Data is on, go to Settings > Cellular > Cellular Data Options, then do any of the following: Reduce cellular usage: Turn on Low Data Mode, or tap Data Mode, then choose Low Data Mode (depending on your iPad model). This mode pauses automatic updates and background tasks when iPad isn’t connected to Wi-Fi.
You could try adding the dns settings to the build.prop file and see if it sticks. Adding the following to the build.prop file should add google as your DNS server. net.rmnet0.dns1=8.8.8.8 net.rmnet0.dns2=8.8.4.4 net.dns1=8.8.8.8 net.dns2=8.8.4.4. Taken from this post on the Nexus 5 forums over on XDA. Watch this video to learn how to change the IP Address of your mobile data on your Android device.Mobile IP is a communication protocol (developed by extending Internet Protocol, IP) that enables users to travel from one network to another network while maintaining the same IP address. There are three significant steps involved in working Mobile IP, i.e., agent discovery, agent registration, and tunneling.Just visit the administration page of your device, usually found by typing the internal address into your browser. Mine is currently on 192.168.1.254 for example and you’ll normally reach the administration console. You’ll find a screen with all the internet connection details and listed there will be your IP address.