I used to have no issues with the mobile app on my iPad, but it mysteriously stopped working. No matter what I place in the user, password, or host name fields, I get Logon Error and a frowny face with no useful explanation of what happened. I can log into the web UI just fine. Where do I start looking for the problem?
look here : https://answers.splunk.com/answers/527314/ipad-mobile-app-login-failed-after-upgrade-to-splu.html
maybe same problème
I am on version 6.5, not 6.6