What is a possible cause for this error?

A user successfully connects to a captive portal enabled WLAN. When the user opens a browser and tries to access a webpage, the user gets redirected as expected to another URL on the Aruba controller.

However, the user sees an error message that web authentication is disabled.

What is a possible cause for this error?
A . The captive portal profile is not assigned to the AAA profile.
B . The captive portal is not assigned to the initial role.
C . A server group is not assigned to the captive portal profile.
D . An initial role is not assigned to the AAA profile.

Answer: A