Central Firewall Maintenance (Sun, 29 Mar 2026, 9:00 a.m. – 5:00 p.m.)

Users Affected	All Staff and Students
Start Time	29 Mar 2026 (Sun) 9:00 a.m.
End Time	29 Mar 2026 (Sun) 5:00 p.m.
Cause	Central Firewall System Upgrade
Service Affected	During this period, you will experience intermittent disconnection in accessing various IT systems below. Please avoid carry out mission critical works during the upgrade period. University administrative systems such as MyCUHK, CUSIS, CUPIS, CUSAP, IOPAS and SPUS etc. For the avoidance of doubt: Email, Microsoft 365, Blackboard, SharePoint, Wi-Fi, and VPN will be in service as usual.
Status	Scheduled

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