Help setting up

I've tried to follow the online guides and cannot get Channels to work on my apple tv or fire tv. It does work on my cell phone, but only inside my house/on my network.

I have an Xfinity gateway and Eero Pro 7 routers, and the server software is on a Windows 11 laptop; the laptop and HD Homerun are plugged directly into an Eero router, which have the port forwarding enabled.

Is there anyone out there who'd be willing to help me offline? I'm sure it's something simple I'm doing incorrectly, but am at my wit's end and can't figure it out.

Thanks very much.

Could be due to windows firewall

If you enter 8089 on https://portchecker.co/ does it show as open