Qubes shuts down after a few seconds

[apparatus]

@uniquenospacesshort

Maybe Qubes isnt working fine with one of my usb devices?

something like a usb-hub, usb microphone?

It’s unlikely to be an issue with your USB device, but it’s still possible for some specific case.

@uniquenospacesshort

is there any guide to create the sys-net by my own?

or is it just creating a new vm, use the ethernet in pci devices and change the “networking vm” on the required vms?

How to create new sys-net?

Well, you’ll also need to set “Net qube” to none,Mode to “HVM”, disable memory balancing, set “autostart”, adjust memory, and enable clock-sync. Then you’ll need to attach your NICs, and possibly configure strict reset. Alternatively, run : qubesctl state.apply qvm.sys-net I suggest you clone the exiting sys-net before deleting it. I never presume to speak for the Qubes team. When I comment in the Forum or in the mailing lists I speak for myself.