Issues Flashing OpenWRT to FritzBox 7362SL


I already flashed OpenWRT to two FritzBox 7362SL routers. I had to factory reset one to use FritzBox OS again.
Now, I try to flash OpenWRT back on it. However, I just cannot execute ramboot anymore. If I try

sudo killall dhcpcd
sudo ip a add dev enp4s0f3u1u3
#Now, turn 7362SL on
python3 openwrt-22.03.5-lantiq-xrx200-avm_fritz7362sl-initramfs-kernel.bin

, I just cannot access the FritzBox anymore. I always receive a OSError: [Errno 113] No route to host error.

Is there any reason why? If I remember correctly, there was something I have to do differently after flashing the recovery image. However, I cannot remember where I read that.

If I let the FritzBox boot up, I can open the FritzBox Website through . So I guess the IP is still correct

Can you please offer me some help? Thank you!

Putting a simple unmanaged switch between your computer and the Fritz!Box significantly increases your chances of success, as it prevents the network link from going down during the router reboot.

Thank you for your reply. However, I don't have a switch and the first two times I did this I had no issues with timing. However, now it just does not work anymore. Does the time frame get narrower when you used the recovery image before?

So, I now have a router which I can use as a switch. It is basically a router where I disabled DHCP. However, there is this weird problem with the 7362SL: The switch does not recognize the 7362SL as a device. If I connect the 7362SL directly to my PC, I can connect from my PC to it (to If I connect any other Fritzbox Router to the switch, and the switch to my PC, I can connect from my PC to the fritzbox through However, if I connect the 7362SL to the switch, and the switch to my PC, I just cannot connect from my PC to the 7362SL through . Inside the switch, I also don't see the 7362SL displayed as a connected device.

Is there anything that I have to enable to make the 7362SL automatically assign itself an IP at my switch? With my other Fritzbox, this worked automatically, so I doubt it.