1. Overview
2. Getting Connected to CUHK Wireless LAN
3. More About CUHK Wireless LAN

1. Overview of CUHK Wireless LAN

A 54-Mbps wireless LAN has been installed in the campus. It allows a wireless (radio frequency) connection to a local area network. The wireless LAN employs IEEE 802.11a; 802.11b and 802.11g standards. The wireless LAN operates in 2.4-GHz and 5-GHz frequency bands with Aruba Network’s enhanced roaming features. The roaming features allow Notebook computers or mobile devices connected to the wireless LAN to move from one access point to another without losing the connection. And the wireless LAN can support more than 2000 concurrent users.

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2. Getting Connected to CUHK Wireless LAN

2.1 Coverage
2.2 Choose a Correct SSID when connecting to wireless LAN (PDF document)
2.3 Central Wi-Fi Model (for department subscription)
2.4 Three wireless connection methods configuration

Wi-Fi Service Name	Connection Method	SSID	Target Users
CUHK Wi-Fi Service	Web Portal Login	CUHK	CUHK staff and students
CUguest Wi-Fi Service	Web Portal Login	CUguest	Internet Access Service for CUHK Alumni Subscribers CUHK Alumni Free Email Address Users CUHK Visiting Guests
CUHK Wi-Fi Hotspot Partnership Programme	Web Portal Login or 802.1x	PCCW Y5ZONE	CUHK staff and students Paid Wi-Fi service subscribers of PCCW/Y5ZONE
		eduroam	CUHK staff and students eduroam users
ClassNet Wi-Fi Service (To be discommissioned on 1 Aug 2009)	VPN connection	classnet	CUHK staff and students

Smartphone users should temporarily disable mobile data services such as GPRS, EDGE, UMTS or HSDPA provided by your mobile operator. This helps to avoid the associated service charge from your mobile operator caused by the accidental change of Internet access from the campus free Wi-Fi connections to mobile data services when the Wi-Fi signal becomes weak or inaccessible. For details of how to disable your mobile data services, please contact your mobile operator.

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3. More About CUHK Wireless LAN

1. Best Practices for Accessing Wi-Fi Service
2. Wireless LAN Card On Loan Service
   
3. Acceptable Use Policy and Guidelines
   
4. Maintenance Schedule

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