Wifi doesn't connet

I would think the problem is with the tablet have it repaired.

What kind of tablet is it?

Go to your setup setting and check your wifi setup might have change because it not storing the setting might have a problem with the tablet would replace if under warranty

Well, Looks like we have the same problem.
The Web Portal that supports the games are having issues with their servers... it's not your server... It will work again and it will gives you problems again... best is to delete the game and re-install, most times works. I do that sometimes good luck

Try connecting it with pressing the wps on your router and on your tablet select the wps

Possibly one app is locking up networking... My gf had this problem after ios update to 8.0. It turned out facebook app became messed up. I uninstalked facebook and everything was great. Reinstalled facebook and it worked fine after that...In fact her whole ipad got faster... IOS updates are becoming painful...

Reinstall the app, I assume wifi is working?

Restart the iPad

If you can click on your wifi and pick "forget" do that and then restart the tablet and try again. If that doesn't work try going to settings and resetting it to factory then it will be like a new one, if you can do it without wifi some tablets wont let you past the wifi screen until you sign on.

Hi there. I noticed that sometimes Android devices seem to have trouble connecting to certain access points or.they seem to stop connecting alltoghether to certain routers. Sometimes this method can help: Select the network you are trying to connect to and select "forget this network". Reboot the tablet and try to reconnect again. Sometimes this doesn't work on the first try. If that doesn't work I have heard of other fixes but they require "rooting" the tablet which could be potentiall dangerous. Another thing you can try if that doesn't work is change the security to a different encryption type. Your password will either be WEP or WPA. Whatever it is try to change it to the other. I cannot give you detailed instructions on this because I don't know your router model or its current settings. Hopefully this helps and leave a comment if you have further questions. Good luck!