Can’t connect to Wi-Fi using Eken M013F Android Tablet!

I recently bought an Eken M013F Android Tablet. Unfortunately, I haven’t been able to hook up to WIFI using it. I have tried it in a number of areas where I am expecting to obtain a high signal but still I was unable to connect.
Whenever I tried to connect, it displays “Scanning … “, “Connecting…“, “Obtaining IP address … “, and then “Disconnected”. Then, I will start the process again but the result is still the same. It's really frustrating and disappointing and everytime I'll just get tired of trying and turned off the Wi-Fi.
I am uncertain if this is just a simple problem or a complex one to be resolved. Kindly assist me on this issue.
