Service Interruption: Slow loading on the Graduate Studies Website
Monitoring - A fix has been implemented and we are monitoring the results.
Dec 09, 2025 - 18:57 EST
Identified - The issue has been identified and a fix is being implemented.
Dec 09, 2025 - 18:32 EST
Investigating - We are still experiencing slow load times and are continuing to investigate. We apologize for this inconvenience and thank you for your patience.
Dec 09, 2025 - 15:11 EST
Monitoring - The site is starting to load as expected. We will continue to monitor this issue.
Dec 09, 2025 - 14:36 EST
Investigating - We are experiencing slow loading times on the Graduate Studies website as of approximately 2:15 pm. We are currently investigating the cause of this issue.

We will provide updates on this page until resolution of the issue.

We appreciate your patience and support as we work to resolve this issue.
Dec 09, 2025 - 14:25 EST

About This Site

Bookmark this page! The University of Guelph IT System Status Page provides announcements and updates regarding IT-related incidents and maintenance at the University of Guelph. Users can view this page at all times, including during network outages. Users can also opt in for email, SMS and RSS notifications via the “Subscribe to Updates” button above.

Scheduled Maintenance

Student Information Systems - Collegue UI Maintenance Dec 11, 2025 06:00-08:00 EST

CCS will be updating Colleague UI between 6:00 am and 8:00 am on Thursday, December 11. Expect several brief interruptions to Colleague access during this period.
Posted on Dec 03, 2025 - 14:15 EST

HR Systems Maintenance Dec 11, 2025 06:00-08:00 EST

The following HR applications will not be available on Thursday, Dec 11 between 6am to 8am for maintenance:

• TD1
• Job Evaluation
Posted on Dec 09, 2025 - 16:43 EST

CCS Data Centre Network Maintenance - Saturday December 13th 10:00 pm to Sunday December 14th 2:00 am Dec 13, 2025 22:00 - Dec 14, 2025 02:00 EST

On Saturday, December 13, 2025, from 10:00 pm to Sunday, December 14, 2025, until 2:00 am, CCS will perform the vendor recommended firmware and software upgrades on the Next Generation Data Center network equipment. During this maintenance window, all resources hosted in the Next-Gen Data Center may experience up to 10-minute interruption of communication with external resources, including DNS, the legacy VM and storage, campus networks, and the public Internet. Communication within NGDC and among NGDC resources will not be affected. Telephone services will not be affected.
Posted on Dec 03, 2025 - 12:07 EST

CCS Data Centre Network Maintenance - Thursday December 18th 8:00 pm to Friday December 19th 12:00am Dec 18, 2025 20:00 - Dec 19, 2025 00:00 EST

On Thursday December 18th 8:00 pm to Friday December 19th 12:00am, CCS will perform the vendor recommended hardware replacement on the CCS Data Center network.

If you have any questions or concerns, please contact me or the CCS Help Center at x58888 or email ithelp@uoguelph.ca.
Posted on Dec 08, 2025 - 14:31 EST
Dec 9, 2025
M365 licensing issue
Resolved - This incident has been resolved.
Dec 9, 13:59 EST
Monitoring - The M365 licensing issue has been corrected and all account licensing has been restored.
Dec 8, 21:27 EST
Identified - The issue has been identified and a fix is being implemented.
Dec 8, 16:37 EST
Investigating - We are currently investigating an issue related to M365 licensing. As a result, some U of G users cannot log into email or other Microsoft 365 applications and affected users cannot receive email messages.
Dec 8, 16:20 EST
FINANCE and HR Oracle APEX Maintenance (OS)
Completed - The scheduled maintenance has been completed.
Dec 9, 08:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 9, 06:00 EST
Scheduled - The Database and Systems Team(s) will be performing Oracle OS maintenance on December 9th, 6:00am - 8:00am.

The following applications will not be available during this time.

Finance Applications affected:
• ECS
• CIBC
• Cognos
• FRS
• Grant and Budget
• SMC
• PIES
• RRV
• One Form
• FIN SAS

Human Resources Applications affected:
• Access Control
• HRER
• Job Scheduler
• Time Entry
Dec 8, 10:00 EST
Dec 8, 2025
Dec 7, 2025

No incidents reported.

Dec 6, 2025

No incidents reported.

Dec 5, 2025
Oracle (EBS) and Server Maintenance
Completed - The scheduled maintenance has been completed.
Dec 5, 20:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 5, 16:30 EST
Scheduled - The DB and Systems Team will be performing Oracle (EBS) and Server maintenance this Friday, December 5th, between 4:30pm to 8:00pm. During this time, Oracle (EBS) will not be available.
Dec 1, 14:08 EST
Dec 4, 2025
CCS Rubrik Data Protection Upgrade – December 4th, 07:00 AM to 12:00 PM
Completed - The scheduled maintenance has been completed.
Dec 4, 12:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 4, 07:00 EST
Scheduled - Please be advised that on Thursday December 4th, 2025, between 07:00 AM and 12:00 PM, CCS Systems Management will be performing upgrade of the Rubrik Platform.

CCS Rubrik Data Protection Upgrade – December 4th, 07:00 AM to 12:00 PM

If you have any questions or concerns, please contact the CCS Help Center at x58003 or email ithelp@uoguelph.ca
Nov 28, 11:36 EST
Dec 3, 2025

No incidents reported.

Dec 2, 2025
Guest Wireless Maintenance
Completed - The scheduled maintenance has been completed.
Dec 2, 08:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Dec 2, 06:00 EST
Scheduled - The campus guest wireless service will be undergoing maintenance.

One short interruption in wireless service is expected.
Nov 27, 14:56 EST
Dec 1, 2025

No incidents reported.

Nov 30, 2025

No incidents reported.

Nov 29, 2025
Student Information Systems - Colleague Software Updates
Completed - The scheduled maintenance has been completed.
Nov 29, 08:52 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 29, 06:00 EST
Scheduled - The CCS EA Student Information Systems team will be installing Ellucian’s quarterly Colleague software updates between 6:00 am and 10:00 am on Saturday, November 29.

There will be a few brief interruptions to Colleague UI, WebAdvisor, Self-Service and Informer while some of these updates are being applied. Full access to Colleague will be available after 10:00 am.

If you encounter any problems with Colleague after this maintenance, please let us know by contacting the CCS Help Centre at ithelp@uoguelph.ca.
Nov 24, 09:55 EST
Nov 28, 2025

No incidents reported.

Nov 27, 2025
Network Switch Maintenance
Completed - The scheduled maintenance has been completed.
Nov 27, 08:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 27, 06:00 EST
Scheduled - The network switches at Vehicle Services Building, Macdonald Stewart Hall Addition, Research Innovation, G. M. Frost Centre, Massey Hall, Alumni Stadium and Day Hall will be undergoing maintenance.

During this maintenance, Phone and Wired/Wireless network services will be unavailable for approximately 20 minutes. All services will be available by 8 AM.
Nov 20, 16:52 EST
Wireless Maintenance
Completed - The scheduled maintenance has been completed.
Nov 27, 08:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 27, 06:01 EST
Scheduled - The campus wireless network will be undergoing maintenance.

One brief interruption in service is expected.
Nov 25, 09:57 EST
Nov 26, 2025

No incidents reported.

Nov 25, 2025
CFS Active Directory Maintenance
Completed - The scheduled maintenance has been completed.
Nov 25, 08:01 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 25, 06:00 EST
Scheduled - The CFS Active Directory domain will be undergoing maintenance. No service interruption is expected.

The CFS Active Directory domain is the main Microsoft Windows Active Directory domain on campus. CFS AD is primarily used to authenticate users to computers and provide file and print services. It is also used to synchronize users and provide user authentication to other systems, such as secure WiFi (uog-wifi-secure and eduroam), VPN, and telephony and voicemail services.
Nov 24, 19:17 EST
Implementation of DMARC
Completed - The scheduled maintenance has been completed.
Nov 25, 08:01 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 25, 07:00 EST
Scheduled - Beginning November 25, 2025, CCS will implement DMARC (Domain-based Message Authentication, Reporting & Conformance) for the uoguelph.ca and guelphhumber.ca domains.

DMARC is an industry standard security protocol and is the next step in the continuous process of improving U of G’s email reliability and security. This implementation was originally planned for June 2025 but was delayed.
(Please refer to the previous CCS News story which has more information about DMARC. A version of this new email was posted to CCS news on Friday.)

Beginning on November 25, incoming messages that fail DMARC testing will be immediately quarantined. In turn, external email providers will be instructed to quarantine messages sent from U of G that do not pass DMARC.

CCS has been working with system owners, and all known business software solutions have been configured to support DMARC. Email sent from these systems will be unaffected. For incoming email, CCS will be monitoring the quarantine for legitimate messages and will notify users accordingly. In the future, we plan to reject incoming email from invalid sources, but we are starting with this quarantine step. There is no current timeline for full rejection, and no messages will be lost during the upcoming change.

DMARC is an important step in improving email security for all faculty, staff and students. This change aims to protect our community from phishing attempts, email spoofing and fraudulent messages that could compromise sensitive information.

Please get in touch with any questions or concerns by way of the helpdesk: ithelp@uoguelph.ca

Thank you.
Nov 19, 16:16 EST
HR and FINANCE APEX Maintenance
Completed - The scheduled maintenance has been completed.
Nov 25, 08:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 25, 05:00 EST
Scheduled - The Database Team will be performing Oracle APEX maintenance on the servers hosting APEX applications on Tuesday, Nov 25, 5:00am – 8:00am. The following applications will not be available during this time.

Finance Applications affected:
• ECS
• CIBC
• FRS
• Grant and Budget
• SMC

Human Resources Applications affected:
• Access Control
• HRER
• Job Scheduler
• Time Entry
• Pay Advice
Nov 24, 13:31 EST
Wireless Authentication Servers Maintenance
Completed - The scheduled maintenance has been completed.
Nov 25, 08:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 25, 06:00 EST
Scheduled - The Wireless Authentication Servers will be undergoing maintenance.

No interruption in service is expected.
Nov 10, 13:42 EST
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