Thanks @smarthomesven for the direction.
Funnily enough I tried the app which uses local connection listed here [APP][Pro] Tapo - Local Tapo devices communication
I was finally able to add the devices YAY!
I was only able to do this on my PC on the homey app - via my iphone i still receieved the same error messages.
Now i need to test to see if it works via the Homey app - need a few more days
regards,
Marco