Just getting into Streaming, need help and advice

New member and still coming to grips with Music streaming.
Just recently I have had issues with Prime music pausing in the middle of tracks. I use a Fire tablet 8 which goes to a Klipsch Gate, and then to Audioengine 5+ powered speakers.
I thought maybe it was an issue with the speakers, but yesterday I tried just the fire tablet by itself and found some tracks still paused sometime, without even going to the speakers.
Now I'm just confused as to what the issue is. I was going to upgrade to a Bluesound Node 2i, but I might have the same issue with pausing audio tracks, so I'm a bit unsure what to do at this point.
Internet is thru Comcast and speed is 239.14 upload and 6 for upload with a ping of 12.
I'm thinking the Fire Tablet could be the issue,If it is , what would be best to use to solve the pausing issues?
Could also be the recent change on Amazon music to HD which would cause bigger files to transfer, but as I said I'm still trying to understand how all this works together