Trying to fix an Asus RT-AC3200.
Have a serial connectivity and this is where the bootstrap gets stuck:
Device eth0: hwaddr AC-22-0B-CE-69-20, ipaddr 192.168.1.1, mask 255.255.255.0
gateway not set, nameserver not set
Null Rescue Flag.
Hello!! Enter Rescue Mode: (by Force)
Reading ...