qemu device is visible only from balena cloud, cannot ping, ssh from local network, balena scan is not detecting any device

My host is ubuntu 20 machine. I created QEMU X86 64bit device, and the device is reachable from balena cloud. To create the device I used the code from the balena dashboard:

qemu-system-x86_64 -device ahci,id=ahci -drive file=balena-cloud-big_sorter-qemux86-64-2.83.18+rev5-dev-v12.10.3.img,media=disk,cache=none,format=raw,if=none,id=disk -device ide-hd,drive=disk,bus=ahci.0 -net nic,model=virtio -net user -m 2048 -nographic -machine type=pc,accel=kvm -smp 4 -cpu host

device created in this way is visible in balena cloud (I cann ssh to device), but I cannot reach it from the local network:

ping is not working
sudo balena scan cannot find any device

I cannot push the code to balena cloud.

I did everything the same as in the official tutorial:

but I couldn’t do the part with local mode.

Device is in development and local mode.