iOS devices failing to enrol via NetScaler after upgrade to 11.1 60.13

After upgrading NetScaler to 11.1 60.13, iOS devices are no longer able to enroll However, Android devices are not affected. iPhone X can enroll but can't access the Store iPhone 7 can't enroll at all Checking the logs, we would be able to see the below, when iOS attempts to enroll: "AAA Client...