Saying no internet connection when Im connected to the internet

Hey so im going onto my minecraft app and im connected to the internet its working for everything else but when I go onto the app and market and go to go onto online games its saying there is a problem and its been doing this for a while and I usually use online games the most so could you please help me as soon as possible as I thought it was just a weird glitch but its been going on for a month now.  Edit: ive looked in my settings and the local network is on but its still saying theres no connection when im able to work every other app