One way would be to hover your mouse over these signs in the bottom left corner of your screen:
After a second of holding your mouse still above the symbols on the left, it will tell you the name of the data-connection, while the color gives you its status.
The white one on the left means 'connected', orange = 'disconnected'.
Should you require more info, I would refer you to the MW videotutorials:
https://support.motivewave.com/videos/