Tidal through Oppo 105 streaming problems

My Oppo bdp105 worked flawlessly streaming Tidal for weeks.  Suddenly it takes between one and two minutes to start playing as well as between tracks.  Does this intermittently and is driving me nuts.

I have rebooted everything, and even changed the dns setting as suggested.  Nothing worked so far.

Any ideas?
Weird. I have fiber and Unifi ac. Wifi in perfect shape. 
Do you have NAS? Can you access from Oppo?
For me the problem lasted six days.  After doing everything possible Att agreed to come check my modem.

Of course when they arrived it was working flawlessly and has been since.  I’m almost convinced that this was a “Tidal” problem.  May never know, but I sure am enjoying it again.
Same problem came to me the other day on Oppo 103. Have no idea. /Jan