Then, unfortunately, I don't know any solution to it. But I know that you just get the spinning circle if you aren't logged in (e.g. if you have been inactive for too long). I just tried that and then i got a response in the log.
One thing though, have you marked the "Import enabled" in the LDAP tab? Maybe Liferay doesn't recognize the user even if he's logged in via AD, if he's not a user in Liferay.
Please let me know if you find out what the solution is!
Regards,
Patrik
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