An employee’s mobile device associates with the company’s guest WiFi SSID, but then is unable to retrieve email. The email settings appear to be correct. Which of the following is the MOST likely cause?
A. The employee has set the network type to WPA instead of WPA2
B. The network uses a captive portal and requires a web authentication
C. The administrator has blocked the use of the personal hot spot feature
D. The mobile device has been placed in airplane mode