“Advanced Ip scanner” would reveal the the IP address is alive, but not to which device actually got the address; it might be something else now.
Your router (new box?) probably gave your Raspberry another DHCP lease.
You should be able to check the DHCP leases on your router, and see what new IP your instance got…
If you know the MAC address, it would narrow your search
No, you need to log on to your new router - it should have a GUI where you can see what is connected to it. That or use FING (an Android APP) as that will at least ID the Raspberry Pi.
Basically go to http://192.168.1.1 in a browser. Should ask for a login - and your new router will have come with a user/pass. Failing that - what is the make of the new router?
EDIT : Also noticed that you are looking for 192.168.68.93 but your router is giving out addresses in the 192.168.1.x range.
I’m guessing you’ve done nothing with the router and it’s running on default settings. Your HA won’t be visible unless it gets a 192.168.1.x address or your router uses the 192.168.68.x range.
If it is a DHCP issue (which i think it is), it is what @Neil_Brownlee said, log on to your router on http://192.168.1.1 and lookup the IP address in your router (by finding your mac address in the dhcp lease list). This will probably be an address in the 192.168.1.x range.
And not related to your issue, but on that same page on your router you can probably turn the lease into a reservation, which will prevent HA from changing IP while connected to this router.
172.30.x.x and 172.29.x.x are typical IPs on a virtual network.
In this case it is probably the internal virtual network of docker.
Just like you have a network behind your router and then some public IP, so have the docker software. The public IP is just one of the internal IP. The one you can still access HA on.
The RPi have to leds at the network cable connector.
When the RPi is powered on, then these should light up. One of them might be blinking, but there should be active still.
If you have no lights, then your connection between the switch/router and your RPi is not working and we are down to hardware fault then, which means cable or network card inside the RPi.
Verified it is really plugged in well?
Tried another port on the router?
You can also try another cable
Does the router show any activity on the led of the port?