Mt5 Not Update

 
Hello, I'm having difficulties in using the platform MT5: 

The problem is that I opened a demo account normal loads and ready, no updates 
the price, it's as if no Internet connection, but is connected 
usually, what should I do?

Documentation on MQL5: Standard Constants, Enumerations and Structures / Environment State / Account Properties
  • www.mql5.com
Standard Constants, Enumerations and Structures / Environment State / Account Properties - Documentation on MQL5