Hey there, I also suggest to try a wired connection between your router and Roon server respectively your MacBook, just to be 100% sure that it’s a Wi-Fi issue.
I had similar problems with playback after upgrading to a new Wi-Fi router a couple of days ago. There’s massive traffic from neighbours’ routers operating in 5GHz band which seems to reduce performance and affect the connection between the Roon server and its endpoints. After switching the Wi-Fi channel (from auto to some specific channel) the problem just disappeared. No more dropouts.
Good luck! 
Hi there,
I’m currently facing the issue again, unfortunately. Already tried switching channel, band and WiFi standard (4/5/6), but didn’t help. Would you mind activating diagnostics mode for my account?
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Did anyone of you activate diagnostics mode for my account? @vadim @noris @daniel @benjamin
Hi @discotexx,
You have our apologies - it looks like your thread wasn’t created through our system normally. Did you ever run through the support typeform prior to posting?
I’d also recommend re-setting up a hardwire connection and see if your issues reproduce.
Either way, please reproduce the issue and share the track name, and we’ll enable diagnostic mode to review further. Thank you! 