Finally I remembered the login for local OC200 admin. I then bind to a new created fresh TPLink Cloud ID, then the cloud access to the controller is working all good. Luckily I remembered the local...

It all starts with: when I log in to Omada Cloud with my email address, the site and device list is not correct. I then log in locally with 192.168.0.xx with this email address (I forgot my OC200...