[Desktop] IPv6 support for the desktop client

[Furry13]

Resubmitting  the same idea as:

https://community.spotify.com/t5/Closed-Ideas/Desktop-Support-IPv6-end-to-end/idi-p/1240314

https://community.spotify.com/t5/Closed-Ideas/Desktop-Desktop-client-IPv6-support/idi-p/1667179

https://community.spotify.com/t5/Closed-Ideas/Other-IPv6-Support/idi-p/4469460

submitted previously by @sdstrowes

It would be highly desirable to make sure that the desktop client can work on Ipv6-only networks as they are becoming operation reality (a number of large entrerprise networks like Cisco and Microsoft have piloted IPv6-only corporate networks).

As it's been mentioned in the previosuly posted incarnations of this idea, the mobile client works just fine and Fastly supports IPv6.

Thanks!

[timstp]

@tijes - I wondered about the cache also.  I just tried clearing the cache and all downloaded songs, then picked a playlist that I have never played before, in a genre I don't normally listen to.  Playlist loaded fine and playback started quickly.  I tried a few different types of playlist, and I remember when I posted here a few years ago, none of that worked - it would just sit and spin.

[tiljes]

Ok, so maybe macos is fixed? Haven't tried windows/Linux in 3 months, so maybe I should check again.

[tiljes]

So I just gave it a try: Windows client is still broken in IPv6-only networks, even with NAT64. Still requires actual IPv4 connectivity.

[mahervelous]

To add to this, just had this fail on an IPv6-only network. Does spotify happen not to support it?