Recommended browsers
- IE Edge with 128 bit encryption (Not applicable in HA Network)
- Firefox 105.0.x with 128 bit encryption
- Safari 12, 13, 14, 15 and 16 with 128 bit encryption
- Chrome 105.0.5195.102 (PC), 107.0.5304.91 (Android), and 107.0.5304.66 (iOS) with 128 bit encryption

Browser setting
- Enable Cookies
- Enable Javascript

Firewall setting
- If your PC is behind firewall, please make sure the traffic to https://convention.ha.org.hk:8089 is allowed.