Why does the light continue to blink and it wont connect?

I have a Belkin Wi-Fi Range extender that I bought a few months ago. When I first set it up everything worked great for a min. then it kept throwing me offline and it said not secure. So I just unpluged it for a good month or better. Now I tried to use it again and and all it does is the light just keeps blinking I have reset it and now the light keeps blinking blue then orange and it doesnot connect to the internet. I am getting very frustrated. Please help