Thank you for the suggestion, but it seems that this is another case.
I've updated to Armbian 23.11.0-trunk.110 using WiFi dongle, but the problem is still here.
I see no wifi interface and eth0 is down and won't get up.
There is a lot of errors in logs:
[ 308.574504] dwmac-sun8i 5020000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[ 308.575858] dwmac-sun8i 5020000.ethernet eth0: __stmmac_open: Cannot attach to PHY (error: -19)