I assume homey list and homey whoami retrieve their information from your cloud account, so in my opinion those commands have no real indication whether you Homey is online or not.
The offline issue will have to be resolved before we’ll able to give you any usefull advice.
Just to be sure; Is your Homey in the same network/vlan/ip range/LAN segment as your computer?
If you don’t know this; Are you in a simple homenetwork with just the ISP’s router and just 1 wifi name?
