I have an issue with this as well. I've followed your steps but when I click edit and try to add 'IIS APPPOOL\ArcGISWebAdaptorAppPool' I get an error saying "The following object is not from a domain listed in the select location dialog box, and is therefore not valid: 'IIS APPPOOL\ArcGISWebAdaptorAppPool'. I've successfully created services and can see them locally. Any suggestions?
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