php artisan up command not working in laravel?

I have this very strange problem in laravel. I successfully put my website into maintenance mode via artisan by this command:

php artisan down

But now i have to put my website back into live mode.I tried:

php artisan up

However, the site isn't going live even though i get success message? Have you guys ever faced this issue? Whats the fix?

I'm on :

1. Macbook pro Mamp
2. Laravel 5.1

Thanks

via Chebli Mohamed