That’s correct. I can connect to it only via SSH. The application on my mobile phone cannot find the volumio device and volumio no longer appears in browser on my laptop.
So it looks like a corrupted system.
But 5 times per 2 months?
as @dvo pointed out, a faulty or underamped popwer supply may be causing the problem.
or a micro sd card that is going bad.
I’ve had the same problem on a RPi 3B+ with latest Volumio stable release.
Need to reflash Volumio every few weeks (+ re-uploading the music on the SD takes 24h).
No customization, no plugin, just base Volumio.
SSH is up but the GUI shutdowns and keep rebooting once in a while (intro music playing again).
Used different SD card of different sizes and brands.
RPi has no issue playing as a Retropie, only Volumio keeps crashing.
Unusable.
Possibly a failing power supply. Volumio is very stable on Pi3/4.
It came back with the latest Volumio update.
So… definitely a software bug.
I got tired of VOLUMIO working on and off, crashing down at the slightest plugin issue, and bought an EverSolo DMP-A6.
I’m not coming back, I finally got a music streamer that boots quickly and just WORKS (touch screen, multi-channel DTS/PCM/DSD, UPnP, SACD ISOs).
And finally, with the “Start silence” setting of the A6, no more cropping at the beginning of an album!
Something VOLUMIO could never do.
My RPi 3B+ is back at being a RetroPie again.