What could be causing this issue?

Your customer has recently implemented a seIf-registration portal in ClearPass Guest to be used on a Guest SSID broadcast from an Aruba controller Your customer has started complaining that the users are not able to reliably access the Internet after clicking the login button on the receipt page They tell you that the users will click the login button multiple times and after about a minute they gam access.

What could be causing this issue?
A . The enforcement profile on ClearPass is set up with an IETF:session delay.
B . The self-registration page is configured with a 1 minute login delay.
C . The guest users are assigned a firewall user role that has a rate limit.
D . The guest users are assigned multiple DNS servers delaying DNS response.

Answer: A