Hass + Harmony

Brand new to all this so pure noob question. Got the Pi 3b+ flashed and working, can access the web link and setup google homes/roku/printers etc but when going to add Harmony Hub it asks for host and hub name - I’ve tried everything

Host - tried my private and personal ipv4 addresses
Hostname - tried renaming the hub to different words to test that.

Sorry for the noob question!

You must give the IP number that is given to the HUB by your router.