No audio device connected

Using Audirvana with Devialet Phantom.
Randomly, Audirvana does not identify audio system and states “no audio device connected”.
Reinitializing computer sometimes solves the problem.
It sometimes happens that I have to renitialize 2 or 3 times before Audirvana reconnects to Phantom.
Any idea why and what solution do you suggest?

Hi JimmBee!
WiFi? Try to change WiFi channel, maybe it got crowded?

Thank you BeagleBoy.
Already thought of having délicated network for music. However Devialet original app works fine on this network so problem probably does not come from network.