March 22-24: Planned Downtime Schedule - ACCC Maintenance Window (1 update) [resolved]

Category: Planned downtime
Last updated: Monday, March 25, 2019 - 11:35am
UPDATE
Posted Mar 18, 2019 3:16 PM
Update: March 22nd - 24th Planned Downtime Schedule ACCC Maintenance Window
Please note an update to the quarterly maintenance window schedule as outlined below. The quarterly maintenance window is from Friday, March 22nd at 5:00pm, through Sunday, March 24th.
ACCC maintenance windows are scheduled to have the least impact on UIC operations, and downtime for services is kept to a minimum. However, certain services may be unavailable for extended periods of time due to necessary updates. Below is the schedule for maintenance window activities that will impact ACCC services:
Friday, March 22nd


  • Network Infrastructure

    From 6:00pm to 7:00pm maintenance will be performed on network hardware. Campus network may experience a loss of connectivity, and users of the research network may experience slower connectivity during this time.
  • Active Directory
  • Starting at 8:00pm on Friday until 11:59pm on Sunday, upgrades will be made to the Active Directory domain controllers. This upgrade should not have any impact on availability.
  • Encryption

    From 9:00pm on Friday to 12:00am on Saturday, maintenance will be performed on the MBAM (Bitlocker) encryption service. Recovery keys will be inaccessible during this time.
  • Office365 Maintenance

    Starting at 9:00pm on Friday until 9:00am on Saturday, updates will be applied on the systems that handle Office365 authentication and Office365 account synchronization. No downtime is expected.


Saturday, March 23rd
  • Network Services
    • Between 8:00am and 10:30am, maintenance will be performed on wireless network authentication servers. Authentication to the Eduroam network and to the Rockford campus wireless network may fail between 8:00am and 8:30am.
    • Between 9:00am and 10:00am authentication to most UIC services requiring login may fail during this time.
    • Between 10:30am and 12:00pm, maintenance will be performed on network Domain Name System (DNS) infrastructure, which may cause intermittent problems loading web pages and using internet services.
  • Endpoint Management - Mac OS

    From 9:00am to 1:00pm maintenance will be performed on JamfPro. The service will be unavailable during this time. Currently enrolled endpoints will continue to run, but new enrollments will not be available.
  • Secure Computing Environment

    From 9:00am to 1:00pm, upgrades will be made to the secure computing environment. No downtime is expected.
  • Website Services

    From 10:00am to 10:05 upgrades will be made to PHP software on webhost.uic.edu and people.uic.edu. PHP users have been contacted via email and are encouraged to ensure compatibility of their code before this time to avoid website appearance and functionality.
  • Wired Network

    From 12:00pm to 12:30pm, maintenance will be performed on firewalls servicing the College of Business and Student Affairs departments. During this time, wired network outages may be experienced.
  • Phone Services

    From 3:00pm to 3:30pm, maintenance updates will be applied to all Voice over IP (VoIP) phones, causing them to restart. Active calls will not be dropped but new calls will not be possible until the phone has finished restarting. Downtime is not expected to last longer than five minutes per phone.

Sunday, March 24th 


  • Network

    Between 9:00am and 10:00am, network maintenance will be performed. Wireless, Wired and VoIP connectivity will be interrupted during this time in the following buildings:
    • SSB - Student Services Building
    • SRCC - Student Residents Common Courtyard
    • TF - Transportation Facility
    • SRCW - Student Residences Common West
    • SRCS - Student Residences Common South
    • AH - Addams Hall
    • GH - Grant Hall
    • DH - Douglas Hall
    • LH - Lincoln Hall
    • SH - Stevenson Hall, Henry Hall
    • TBH - Thomas Beckham Hall
    • JJST - James Stukel Towers
    • CGS - Curtis Granderson Stadium
  • Wireless Network
    • Between 10:00am and 11:00am, maintenance to the wireless network will be performed. No downtime is expected.
    • From 11:00am to 12:00pm, maintenance will be performed on the wireless network on East and West campuses. During this time, wireless network access will be unavailable.
If you have any questions, please feel free to contact us at: consult@uic.edu
To report a service outage that you believe is not part of the above maintenance activities, please contact our Network Operations Center at 312-413-0003 Option 2.
Posted Mar 7, 2019 4:52 PM
Please note that ACCC’s next quarterly maintenance window is from Friday, March 22nd at 5:00pm, through Sunday, March 24th. ACCC maintenance windows are scheduled to have the least impact on UIC operations, and downtime for services is kept to a minimum. However, certain services may be unavailable for extended periods of time due to necessary updates. Below is the schedule for maintenance window activities that will impact ACCC services:
Friday, March 22nd


  • Network Infrastructure

    From 6:00pm to 7:00pm maintenance will be performed on network hardware. Campus network may experience a loss of connectivity, and users of the research network may experience slower connectivity during this time.
  • Wireless Network

    Between 7:00pm and 8:00pm, maintenance to the wireless network will be performed. No downtime is expected.
  • Network

    Between 8:00pm and 8:30pm, network maintenance will be performed. Wireless, Wired and VoIP connectivity will be interrupted during this time in the following buildings:
    • SSB - Student Services Building
    • SRCC - Student Residents Common Courtyard
    • TF - Transportation Facility
    • SRCW - Student Residences Common West
    • SRCS - Student Residences Common South
    • AH - Addams Hall
    • GH - Grant Hall
    • DH - Douglas Hall
    • LH - Lincoln Hall
    • SH - Stevenson Hall, Henry Hall
    • TBH - Thomas Beckham Hall
    • JJST - James Stukel Towers
    • CGS - Curtis Granderson Stadium
  • Active Directory

    Starting at 8:00pm on Friday until 11:59pm on Sunday, upgrades will be made to the Active Directory domain controllers. This upgrade should not have any impact on availability.
  • Encryption

    From 9:00pm on Friday to 12:00am on Saturday, maintenance will be performed on the MBAM (Bitlocker) encryption service. Recovery keys will be inaccessible during this time.
Saturday, March 23rd
  • Network Services
    • Between 8:00am and 10:30am, maintenance will be performed on wireless network authentication servers. Authentication to Chicago campus UIC-WiFi may fail during this time. Authentication to the Eduroam network and to the Rockford campus wireless network may fail between 8:00am and 8:30am.
    • Between 10:30am and 12:00pm, maintenance will be performed on network Domain Name System (DNS) infrastructure, which may cause intermittent problems loading web pages and using internet services.
  • Endpoint Management - Mac OS

    From 9:00am to 1:00pm maintenance will be performed on JamfPro. The service will be unavailable during this time. Currently enrolled endpoints will continue to run, but new enrollments will not be available.
  • Secure Computing Environment

    From 9:00am to 1:00pm, upgrades will be made to the secure computing environment. No downtime is expected.
  • Website Services

    From 10:00am to 10:05 upgrades will be made to PHP software on webhost.uic.edu and people.uic.edu. PHP users have been contacted via email and are encouraged to ensure compatibility of their code before this time to avoid website appearance and functionality.
  • Wired Network

    From 12:00pm to 12:30pm, maintenance will be performed on firewalls servicing the College of Business and Student Affairs departments. During this time, wired network outages may be experienced.
  • Phone Services

    From 3:00pm to 3:30pm, maintenance updates will be applied to all Voice over IP (VoIP) phones, causing them to restart. Active calls will not be dropped but new calls will not be possible until the phone has finished restarting. Downtime is not expected to last longer than five minutes per phone.

Sunday, March 24th 


  • Wireless Network

    From 9:00am to 10:00am, maintenance will be performed on the wireless network on East and West campuses. During this time, wireless network access will be unavailable.
If you have any questions, please feel free to contact us at: consult@uic.edu
To report a service outage that you believe is not part of the above maintenance activities, please contact our Network Operations Center at 312-413-0003 Option 2.