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TTLC Help Desk Announcements

UHD's Canvas instance is hosted on the cloud by Instructure, rather than hosted by on-premise servers. System updates happen automatically, usually biweekly. Updates could cause the system to become unavailable, or otherwise affect user sessions. The goal is for UHD's Canvas to be available 365 days per year, 24 hours per day.

Canvas maintains a page showing the status of their services and outages. (Outages for third-party tools such as Turnitin, Panopto, and Perusall will not be included in Canvas' list.)

Contact the TTLC Help Desk if you have questions at

Canvas Maintenance event on December 7, 2023

Announcement: UHD's Canvas instance will undergo a brief maintenance on December 7th starting at 2 AM and ending approximately after 4 AM. Users may not be able to access Canvas while the event is underway. Please plan accordingly.

As a reminder, maintenance windows are reserved on the 1st & 3rd Thursday of each month in the event of a scheduled maintenance.

Mac OS users - Respondus Lockdown Browser Known Issue

Description: This issue only impacts Mac users on Canvas, students are seeing an error message when attempting to access their quiz links when using the Respondus browser.

Announcement:​  Please update your Respondus Lockdown Browser application to prevent issues with accessing quizzes on Canvas. 

LockDown Browser version for Mac impacted:

Please visit the Respondus support article page for more information.

Be Sure to Update LockDown Browser 

Description: Many of LockDown Browser's Known Issues are likely to be fixed by updating your software. Updating your personal browser should resolve the issue for exams that don't require Respondus. In the case of Lockdown Browser, students will need to update their browser by following the steps detailed in the link below:

How to update LockDown Browser

Recurring Announcement

Maintenance Windows: 1st and 3rd Thursday of the month from 2:05am to 4:05am, Canvas may be unavailable (this is the regular biweekly maintenance time). During this time you may experience intermittent issues when attempting to login to Canvas. It is not recommended to access information in your courses or to submit assessments during this period.