I don't know if this helps our cause but I thought I would mention that yesterday I signed up for Tidal using the Naim App to play through my NDX, this gives you a 90 day trial. I tried to play some tunes using Tidal. The interface works fine and you can browse their extraordinary library of music. When you go to play however, it is a different story. Whenever I attempt to play the NDX says, "Connecting ..." and then it says "Can't play, skipped track". The Tidal app offers three "quality settings" which you can access through the Settings on the App: Normal, High and HiFi. I would imagine that when you sign up using the 90 day trial they would put their best food forward and give us HiFi. However I tried all three and none of these work.
I contacted Tidal and they predictably responded with this:
Thank you for contacting TIDAL Member Support
Please contact the NAIM Support Team as they developed the interface with the TIDAL backend and should be able to help resolve your issue.
Here are the particulars of my system:
1) Firmware version of NDX is 4.4.00 according to the https://www.naimaudio.com/updates webpage this is the current version
2) Internet connection is as follows: Download: 6.05 Mbps, Upload 0.32 Mbps, latency 53 msec
3) Connection between NDX and the ADSL modem is a CAT 6 dedicated cable with nothing else on the line
4) I can listen to iRadio with no problems
I have contacted my Naim dealer in Adelaide (the wonderful Michael at Atmosphere Audio) and he has forwarded my query to Chris Murphy who is the Australia/New Zealand Naim rep. I imagine when the sun rises in the UK tomorrow that someone from Naim will write to me and fix it. I will update you all when this happens.