Aurender N10 - Sound quality performance is erratic


I am having problems with my N10. Some days it plays amazingly good, other days good and some days not good at all.

I live very near Aurender in SoCal and so I took my unit in for service and they provided me with a loaner. The first session after I put the loaner in the system was all-time good. Then the next day wasn't all that great. Then the next two days were good but no great. Anyway, this is just weird. Both N10s appear to exhibit this erratic behavior.

My internet is ATT DSL at 24Mbps and that has been suggested as the culprit (I was thinking about calling and asking them to give me a trial at 50 or 100 Mbps to see if the increased speed will eliminate the problem - 24Mbps is fast enough I almost never seen buffering in Netflix). It has been suggested that I get hi-speed cable to solve this problem and get rid of the twisted pairs on the phone line. I have tried a DSL filter and it hasn't seemed to help, assuming I've got it installed correctly.

So have any of you N10 users had this problem? If so, how did you fix it?
pokey77
JA's comments apply only to the A10 which has its own dac section.
Correct, my bad, just saw Aurender and 10 and flashed back to this hobbling Aurender did on this unit..

Cheers George
@steakster 

Yes I am talking about streaming Tidal.

Ok, didn't know that "the streaming settings for your personal account need to be re-set" when Tidal has updates. How do I know when Tidal updates, and then how do I re-set my personal account? I appreciate the insight. 
FYI - Today brought an amazing session with sound quality as good as it has ever been for me. I hope tomorrow will be the same. BTW, I have not performed any other updates since yesterday, so not sure why it was so good today, but I'll take it. Didn't want to stop listening it was so good.
Post removed 
FYI - Today brought another amazing listening session with sound quality seemingly as good as it has ever been for me. I said yesterday that I hoped tomorrow will be the same, well it was. BTW, I have not performed any other updates since 10/22 but I did take back the loaner N10 and picked up my repaired N10. According to Aurender, the player had a grounding issue and also one of the SSD drives needed to be replaced. I drove home and put it in the system and had to leave for an hour or so and it was playing tracks while I was away. I sat down after I got home and wow, REAL music was playing. I didn't want to stop listening it was so good. When the music is this good, I can't help but be happy.