What is the most common cause of dropouts when streaming Tidal?

Sometimes when streaming Tidal on my Bluesound Node 2 I will experience audible dropouts in the music...sometimes for a few seconds, sometimes longer. I can go for days and never experience a dropout and then for a period of 15 min or so they frequent. I contacted Bluesound support and they requested a log file, which I sent them. They saw no indication of a problem on their end and suggested I contact Tidal. Tidal support directed me to Bluesound. When I told them I had already discussed this with Bluesound they suggested it might be my ISP. Of course, everything from their end also looked good and I had not been having any other Internet connectivity issues. My high speed Internet speed is around 48mbps. My Bluesound is connected via Ethernet and I have no dropout issues when playing music from my NAS. Just wondering if anyone else has run into this issue and if so how/if you were able to resolve it.  BTW, I stream CD and MQA quality.