Hi from up the way in Davis. I had similar problems in the past and maybe/maybe not this will help. Poor bandwidth was the culprit (and the odd bout of fixing something that wasn’t broken as that’s my working definition of some audiophile upgrades).
1.) After the crash do you shut down and restart and then is your gear working again? If the crash is total with out the music resuming then that’s unfortunate. If it’s a "stall" then it’s likely bandwidth. Assuming you are using a streaming service and not sourcing from a NAS?
2.) Do you have a fast robust internet connection? Are you wired in or are you using wifi? Is ethernet hardware good stuff? Does speed test give you a good report?
3.142) Power good/great.(asked above)?
4.) Have you taken the DAC out of the chain and gone directly into your pre or integrated amp? Doubt this is it.
5.) Well vented? Gear run hot? Doubt this is it too.
5.5) Did you have an old system where this did/did not happen?
6.) Occam’s razor.
If I had a DAC you would be welcome to plug in here but my streamer has an internal DAC.