After setting up a Guest-WLAN using the Mist captive portal, users complain that they are not able to see the captive portal splash page. What would be two reasons for this problem? (Choose two.)
A.
The guest VLAN tag is not configured on the switch port.
B.
The DNS server's IP address is not configured in the IP pool.
C.
The Mist portal IP is not configured under the captive portal bypass.