Assuming you have tried another ethernet cable and have set the Amp more than a metre away from your Router, then you are perhaps best to contact/chat Sonos Support Staff direct to get your diagnostic report. checked.
You can contact them via this LINK
HTH
Or, possibly, the issue is at Spotify’s server. Having Sonos look at that diagnostic might be the best way to tell.
Hi @JustinW05, welcome to the Sonos Community, and thanks for providing that diagnostic.
I had a quick look, and it does seem that there may be an issue with the Ethernet cable connecting the Connect:Amp to the network. I also noticed that the Connect:Amp has two Ethernet cables attached - is the Playbar connected to the network via the Connect:Amp?
Let us know how you get on if you’re able to test with a different Ethernet cable and we’ll take it from there :)