If you want to use your MiFi to stream video, use Skype and play games online, you'll need to check that it's possible with your device and signal strength. You may not be able to play games online and use Skype if you're connected to the 3G internet. You'll get the best performance if you've got a high speed connection.
You can check your signal strength from these icons on your display screen:
† Mobile Browser with limited browsing.
* No Flash Support.
** DSi doesn’t support Wi-Fi encryption for online gaming.
To turn off encryption:
Find out more about MiFi icons here.