These symptoms started after installing the macOS Sonoma upgrade, and continued after the macOS 14.1 update.
Tried lots of troubleshooting:
Safe Boot of computer
Safe launch of Music.app
Test user account - still happens
Mac Studio (2023)
I've got a fix, and it's a good one too. Use 2 network NICs, one connects to the 10gbe network with Jumbo frames on, the other connects to the same network or a VLAN with Jumbo frames off. NAS traffic will prefer the 10gbe Jumbo frames and Apple Music will utilize the other.
Solved the problem. It turns out that Jumbo Frames on my Ethernet connection was disabling connectivity for the Music.app. This worked in Ventura on this same computer. I noticed it working when disconnecting the Ethernet cable, but all other networking was fine, other than Music.app. Then I checked what was different, and I have a 10GbE connection with Jumbo Frames enabled automatically. Manually disabling it allowed Music to connect.
I'm also experiencing the same issue when enabling Jumbo Frames. It does not make sense at all, why would Apple Music not work when this is enabled? In theory, this should work. This makes me question the following.
It seems Apple Music is setting IP Flag Don't Fragment on. Whyyyyyyy? Haven't done a packet capture, but I think this is happening.
If Apple Music is not setting the Don't Fragment Flag, it should work with no issues regardless of the MTU size. Let intermediate devices do the fragmentation and reassembly of packets.
Why Apple Music does not use standard packet size (MTU 1500)? This will allow Apple Music to set the Don't Fragment flag and work in any network (high speed 100 Mbps or higher). I do not understand why media would require bigger packet sizes.
Would be great to have either Apple fixing this or making the Music app open source, so other people can fix this minor issue.
Sorry for ranting.
Yes! Jumbo frames on Sonoma is breaking the native Apple Music app. I stumbled on this fix last night and instantly resolved Music not working. Have been using the web player for months...this is better.
Hopefully Apple can roll a solution for this. Seems like jumbo frames are important for all of us 10Gbe+ users.
I'm seeing the same issue with Sonoma on a Mac Studio. Is there a work around where we can still use Jumbo Frames? I'm running 10GbE and this is a necessary configuration.
Same problem on all of our studio's Macs. This is really frustrating, Jumbo Frames is required for fas throughput on our storage network, but Apple Music will not work with Jumbo Frames on Sonoma.
Apple Music Cloud Library , Sharing Profile and Find Friends not working - cannot connect, spinning
