@MrJB73 wrote:
I've made the image to best outline it - VM as router (no wifi) > APE Base (wifi and ethernet) > Bridge mode from APE Base to APE Extension. APE's responsible for WIFI.
Is it right to use the WAN ports as I have? Or best to use ethernets - colour coded if that helps!
Looks OK to me. There's various information on Apple and other forums - for example:
https://support.apple.com/en-us/HT204616
As far as I know the 'WAN' ports on the Apple kit are much the same as 'Uplink' ports on switches.
If it turns out it doesn't work, move the cable on the right hand unit (in your drawing) to a 'LAN' port instead...
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I know a bit about Wi-Fi, Telecoms, and TV as I used to do it for a living but I'm not perfect so don't beat me up... If you make things you make mistakes!