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. Reference:
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