What is going on here? Streamer or DAC?

I’ve got an old (2016) streamer DAC that is beginning to show some instability. I do not believe it is my signal strength—240+ mps, no problems streaming video, occurs wired or WiFi. Opinions? Here are the symptoms:

1. Maybe one track in four, starts with a skip or stutter.  If I restart the track, it starts fine. 
2. Maybe one every few weeks/months, gets stuck repeating one note sort of like a damaged record. When this happens, no control via remote or the unit itself. Have to unplug to get it to stop. Sometimes it self corrects when plugging back in, sometimes have to hard reset.

3. Maybe once every few weeks, will locate tracks on Qobuz but will not load and play them.  Works fine from NAS or internet radio. When this happens, sometimes can correct by re-acquiring WiFi, sometimes needs a hard reset. This might be associated with momentary power outages. 
 

4. maybe once in three-six months, just shuts down and restarts while playing. 
 

Comments?