But if you want to manually assign IP address, Gateway, Netmask and DNS address of wi-fi, here is how you can do. Method below is described for Samsung Galaxy Tab, but it will work for all Android phones.
- On Home screen, press Menu key.
- Tap Settings
- Tap Wireless and network.
- Tap Wi-Fi Settings.
- Press Menu key again.
- Tap Advanced.
- Enable “Use Static IP“.
After you have enabled “Use Static IP“, you will be able to manually assign and configure IP address, Gateway, Netmask and DNS address of wi-fi network.