If you connected your instrument successfully (instrument Icon visible in the Digitaize Cloud), but you don’t get any audio data from the instrument over the Audio Streaming plug-in:
Try restarting Digitaize
Try closing Internet Connection of the computer
Check your computer firewalls to see if any plug-ins or resources from Digitaize were blocked by the OS
On Windows: open TaskManager and check if “DigitaizeBridge” is present under Processes -> Apps. If not, try manually starting Digitaize Bridge. To do so, go to C:/Program Files/Nimikry Music/DigitaizeBridge