Thank you that response.
As I said in the original post, I had already clicked every cluster (map section) that has a house icon (symbol) (and some without the icon, too). I get the message that I posted in the original message.
"Currently there are no free servers available. Use the Atlas code to link more Atlas expansion servers."
Seems to me that function assigning/recognizing the Home Server does not see the server associated to my account. But who knows.
For grins, I just clicked each one again and still get the error message.
Thanks, but problem is not solved.