My Galaxy tablet 2 10.1 IP address says unavailable how do I make it available

[Android Central Question]

I am trying to hook up to my router on my Galaxy tablet 2 10.1 and it says IP address unavailable how do I make it available and where do I go to do this please help

 

[B. Diddy]

Welcome to Android Central! Are you able to connect to any other wi-fi network?