CUHK VPN (Virtual Private Network)

CUHK VPN (Virtual Private Network)

CUHK VPN allows CUHK users to securely connect to the campus network even over a non-CUHK network access (e.g. home broadband service). The VPN technology encrypts the data transferred online and prevents private information from wiretap. Some CUHK websites / online resources are accessible off campus only if users have connected to a VPN connection.

Available to

Staff & students

Service Charge and Application

Free, no application required

Service Availability

24 X 7; except maintenance period


1. Installing VPN Client to Use CUHK VPN

Set up and Connect CUHK VPN with

  • Android:  eng guide   Chi guide
  • iOS:  eng guide   Chi guide
  • Windows: eng guide   Chi guide
  • Mac: eng guide   Chi guide

Details of CUHK VPN

  • Hostname:
  • Max connection session: 8 hours with 1 hour idle time out except Windows 8 / 8.1, Mac OS X 10.9 or above and iOS 7 or above.


2. Benefits


  • Protect your sensitive information transferred online
  • Avoid lengthy idle time and moderate IP addresses usage
  • Prevent network resource abuse by prohibiting multiple logins to CUHK VPN / ClassNet
  • Unify access restriction methods on CUHK online resources. System developers therefore can restrict their resources by asking users to connect to CUHK VPN with Computing ID + OnePass (CWEM) password.


3. Services Require VPN Connection

Services Require VPN Connection

  • The following central IT resources or services require a campus network connection when you’re outside CUHK.
    • CUHK Restricted Webpage at
    • CUPIS – CU Personnel Information System
    • CUSAP Financial System
    • IOPAS – Integrated Outside Practice Administration System
    • SPUS – Staff Profile Update System
    • SSAS – Staff Superannuation Administration System
    • ITSC managed Research Computing Platforms (Newcluster, AVES, GAIA)
    • Kaspersky anti-virus download center
    • Camtasia registration list
    • RDP (Remote Desktop Protocol) – policy
    • SMB (Server Message Block) – policy
    • Wake-on-LAN
    • Changing Email Alias or Email Address
    • ITSC Computing Account Application and Management System
  • Access ClassNet, a wired network in CUHK classrooms
  • For department IT services, please consult related departmental IT support.
4. Policy and Guidelines


5. Known Issues
  1. You may experience an unstable VPN connection from mainland China with the gradual upgrade of China’s Great Firewall. Most of the University systems do not require a VPN connection. You can do your email, access eLearning system, browse CUHK websites, etc. through any Internet connection. Please check out services that require a VPN connection.
  2. There’s a known issue with Windows 10 home edition (with version 1903) users fails to make a VPN connection. “Connecting to VPN” message keeps prompting on screen without making a connection. It could be a windows bug and some users fail to establish the connection at Windows system tray. Please follow the steps below to establish the VPN connection.
    Solution 1:

    1. In the Windows search box, type VPN Settings command.
    2. Click “VPN Connection”, “Connect”.
      Connect VPN
    3. When prompted, enter your Computing ID as Username, and OnePass password for password. And then click OK to establish the connection.
      login VPN

    Solution 2:

    1. In the Windows search box, type rasphone command.
    2. On the prompted windows, click Connect.
      Connect VPN using RESPHONE
    3. When prompted, enter your Computing ID as User name, and OnePass password for password. And then click Connect to establish the connection.
      login VPN using RASPHONE