Looks like wrong SKI version was the answer. I’ve update and the connection shows up for selection on iPad and initial tests show communication OK.
Thanks for support.
Glad to hear everything’s up and running now although normally a dialog box should appear in case your SKI version isn’t up-to-date. It should then invite you to download the latest version.
There was no window that I recall seeing regards out of date SKI version however given the way windows can overlay each other it may have been there but I didn’t see it in my workflow.
The iPad communication message ‘Received bad response code from server 500’ may also be a useful clue for users to check their SKI version.