* The question describes a scenario where a student can connect to the campus Wi-Fi with a laptop, but not with a phone, even when they are close to each other.
* This suggests that the problem is not related to the transmission speed, channel overlap, or antenna cable attenuation/signal loss, as these factors would affect both devices equally.
* The most likely cause of this connection failure is that the student entered the incorrect passphrase on the phone, or the phone has a different security configuration than the laptop.
* To verify this, the student should check the Wi-Fi settings on the phone and make sure they match the laptop's settings, such as the SSID, security type, and passphrase.
* If the phone still cannot connect, the student should contact the network administrator or the Wi-Fi service provider for assistance. References:
* CompTIA Network+ N10-008 Study Guide, Chapter 3, Section 3.1, Wireless Network Standards and Encryption, page 1251
* Professor Messer's CompTIA N10-008 Network+ Course Notes, Section 3.1, Wireless Network Standards and Encryption, page 192
* Professor Messer's CompTIA N10-008 Network+ Training Course, Video 3.1 - Wireless Network Standards and Encryption, 12:00 - 13:003