I know that WOL works over a LAN, it just doesn't work going over the internet. I've combed through many different guides. But on my Fedora Linux box on the same LAN I cannot telnet 9 nor nc -u 9. Telnet server no longer comes with Windows 10, so I can't test to see if that port is actually accepting connections locally. I have created an Inbound Firewall rule for port 9 (TeamViewer default port for WOL) for both UDP and TCP, in all of the domains. I was able to verify that I can use the DynDNS name to hit the Raspberry PI over SSH. For another device on the network (Raspberry PI) I have previously set up port forwarding on the router. TeamViewer is configured to use a domain name that I have registered on and I have set up my router to use DynDNS as well. So I am ruling out the issues of a device configuration issue.

I changed the device settings, BIOS settings, etc. By using both my phone and another computer on the same LAN I am able to confirm that WOL works locally. I am trying to configure TeamViewer to do Wake on LAN over the internet.

Teamviewer 12 wake on lan