[Maintenance Window] Server supporting applications running on hkuesd.hku.hk and central authentication for OS patching

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3EAccess%20to%20HKU%20Portal%20(for%20staff%20and%20students)%2C%20student%20email%20service%20(HKU%20Connect)%20and%20all%20applications%20using%20the%20central%20authentication%20service%20to%20login%20will%20each%20be%20affected%20by%20an%20interruption%20of%2010%20minutes.%3C%2Fp%3E%0A%3C%2Fdiv%3E

[Maintenance Window] Oracle Financial Systems

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3EAccess%20to%20FFOS%20(Financial%20Functions%20for%20Oracle%20System)%2C%20Oracle%20Financials%20and%20Staff%20Claim%20Reimbursement%20will%20be%20suspended.%3C%2Fp%3E%0A%3C%2Fdiv%3E

Resumption of Network, WiFi and IP Phone services at Ricci Hall (Block A)

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3ENetwork%2C%20WiFi%20and%20IP%20Phone%20services%20at%20Ricci%20Hall%3C%2Fp%3E%0A%3C%2Fdiv%3E%0A%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3ECause%3C%2Fh6%3E%0A%3Cp%3Epower%20outage%3C%2Fp%3E%0A%3C%2Fdiv%3E

Intermittent WiFi Service in Residential Halls on Nov 27, 2025

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3EWiFi%20services%20in%20residential%20halls%2C%20excluding%20Jockey%20Club%20Student%20Village%20IV%20in%20Wong%20Chuk%20Hang%2C%20may%20experience%20intermittent%20interruptions%20several%20times%20during%20the%20maintenance%20window.%3C%2Fp%3E%0A%3C%2Fdiv%3E%0A%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3ECause%3C%2Fh6%3E%0A%3Cp%3EUrgent%20maintenance%20for%20a%20faulty%20device%3C%2Fp%3E%0A%3C%2Fdiv%3E

Resumption of Bulk Email delivery service for staff and student email

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3ESuspension%20of%20Bulk%20Email%20delivery%20service%20for%20staff%20and%20student%20email%3C%2Fp%3E%0A%3C%2Fdiv%3E%0A%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3ECause%3C%2Fh6%3E%0A%3Cp%3EDue%20to%20the%20current%20delayed%20email%20delivery%20problem%20on%20Microsoft%20Exchange%20Online%2C%20the%20bulk%20email%20delivery%20service%20for%20staff%20and%20students%20will%20be%20suspended%20until%20further%20notice.%20And%20this%20service%20will%20be%20resumed%20later%20after%20the%20mail%20delivery%20delay%20problem%20is%20resolved.%3C%2Fp%3E%0A%3C%2Fdiv%3E

Delay delivery of incoming email for staff and student email

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3EAn%20email%20service%20issue%20has%20caused%20delayed%20delivery%20of%20incoming%20emails%20for%20both%20staff%20and%20students%20on%20Microsoft%20Exchange%20Online%20since%2011%3A25am%20this%20morning%20(21st%20Nov%202025).%20As%20a%20result%2C%20incoming%20emails%20may%20arrive%20later%20than%20usual.%20Microsoft%20Support%20has%20been%20contacted%20and%20is%20currently%20investigating%20the%20problem%3B%20they%20will%20provide%20a%20solution%20as%20soon%20as%20possible.%20We%20will%20share%20updates%20when%20the%20service%20returns%20to%20normal.%3C%2Fp%3E%0A%3C%2Fdiv%3E

Two brief interruptions to host segment access

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3EHost%20segment%20firewall%3C%2Fp%3E%0A%3C%2Fdiv%3E%0A%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3ECause%3C%2Fh6%3E%0A%3Cp%3Efirmware%20upgrade%3C%2Fp%3E%0A%3C%2Fdiv%3E

Access to CAFM system will be suspended

%3Cdiv%20class%3D%22hku-notice-details-container%22%3E%0A%3Ch6%3EImpacted%20service(s)%3C%2Fh6%3E%0A%3Cp%3EServers%20supporting%20Computer%20Aided%20Facilities%20Management%20(CAFM)%20System%3C%2Fp%3E%0A%3Ch6%3ECause%3C%2Fh6%3E%0A%3Cp%3EOS%20patching%3C%2Fp%3E%0A%3C%2Fdiv%3E