Canvas LMS has failed at scale twice in the past year. On October 20, 2025, an Amazon Web Services incident took the platform offline for about 16 hours across North America; in May 2026, Instructure pulled Canvas into maintenance mode after a security breach, and universities from Arizona State to Adelaide cut their own access for between one and five days. Both events landed inside assessment periods.
Most days the problem is smaller and closer to home: a browser version Canvas no longer supports, a blocked third-party cookie, an extension that broke after Saturday's release. This guide sorts every cause into one of three layers, gives the fix for each, and starts with the habit that makes the big outages survivable.
- 1 Status page first. Open status.instructure.com before anything else. An active incident means nothing on your laptop will help.
- 2 Seven causes, three layers. Three sit with Instructure, one with your institution, three with your device. Each cause below ends with its fix; the last three take minutes.
- 3 Outages land in assessment weeks. 16 hours on October 20, 2025; up to five days in May 2026. Adelaide University moved every deadline due May 8–11 to May 15.
- 4 Sync before it breaks. Keep a copy of your files and due dates outside Canvas. You cannot download a lecture PDF from a login page that will not load.
Why Sync Canvas Before It Breaks?
On October 20, 2025, Florida State University's Canvas support center logged the outage from roughly 9 a.m. to 9 p.m. Eastern and recommended extensions on assignments and assessments, because students could not open course sites, study, submit work or sit assessments for the duration.
Seven months later the failure was longer. Adelaide University suspended access to myLearning, its Canvas instance, over the weekend of May 9, 2026 and restored it at 5 p.m. on Monday, May 11. RMIT and the University of Melbourne came back the same afternoon; Swinburne and QUT were still offline at that point, according to ABC News.
An outage takes two things at once: the files and the calendar.
A student whose slides, readings and due dates exist only inside Canvas has nothing to revise from and no list of what was due.
The fix is not technical. It is a weekly habit: copy each course's Modules and Files to a second location every Friday, and again whenever a coordinator posts new material.
AskSia is an AI study workspace built to be that second location. It holds a copy of course materials outside the LMS and turns them into notes, flashcards, mock exams and answers that cite the page they came from, so revision does not stop when a login page does.
Sync in this order: the syllabus and assessment schedule first, then the modules covering the two weeks before each exam, then everything else. Build the re-sync into your weekly study schedule rather than into exam week, when you can least afford to discover the platform is down.
Is Canvas Down, or Is It Just You?
Every Canvas failure sits in one of three layers: Instructure's cloud, which runs every institution in a given AWS region on shared infrastructure; your institution, which controls single sign-on, term dates, course publishing and integrations; and your device, which controls browser version, cookies, extensions and network.
Work down from the top. Platform first, campus second, laptop last.
Two public signals settle the first layer in under a minute. Instructure's status page lists Canvas components and seven AWS regions separately, and its incident notice on October 20, 2025 named the IAD (us-east-1) region specifically. Downdetector, which normally logs 5–10 Canvas complaints an hour, was logging about 5,000 an hour that morning, according to The Emory Wheel.
The table below maps the symptom you see to the layer that owns it.
One habit costs students the most time during a real outage: clearing cache and cookies. It fixes nothing at the platform layer and signs you out of every campus service that shares the login.
Check seven causes below run from the top layer down: three sit with Instructure, one with your institution, three with your own device. Each ends with its fix.
The first three you cannot repair yourself. The fix there is knowing what to do while you wait.
1. Is Instructure Itself Down?
Canvas runs on Amazon Web Services. When the us-east-1 region failed on October 20, 2025, Instructure posted its first status update at 3:04 a.m. ET, restored access for most users at 7:16 p.m. and closed the incident at 9:02 p.m., according to MIT's The Tech, which tracked the status page through the day. Panopto went down with it at Yale because it authenticates through Canvas.
The tell-tale sign is the broken-rocket error graphic, plus classmates at other universities reporting the same thing.
The fix: confirm it on the status page, then stop troubleshooting
- Open status.instructure.com and check the banner, the Canvas LMS component and the AWS region lines. Per-instance uptime lives at statushistory.instructure.com, which shows your own school's Canvas rather than the global picture.
- If an incident is active, stop. No local fix will work, and every minute spent on browser settings is a minute not spent on the synced copy of your notes.
- Screenshot the error with the system clock visible, subscribe to status updates by email or SMS, and email your instructor before the deadline, not after. Instructure's timestamps corroborate a platform-side cause; a browser-side cause has no corroboration.
Then close the settings tab. The problem is not on your side.
2. Did Instructure Shut Canvas Down?
On May 7, 2026, an unauthorized actor altered the pages some users saw after logging in. Instructure took Canvas offline into maintenance mode, traced the entry point to its Free-For-Teacher accounts and shut those accounts down, per the statement it sent to institutions. Universities then made their own calls: the University of California system redirected Canvas access, and Adelaide University suspended myLearning until May 11.
A maintenance notice, an altered login page or a university email announcing a suspension all point here.
The fix: follow your university's channel, not the login page
- Check your university's IT status page, student portal and email before retrying. On May 9, 2026, Adelaide University told students not to log in to myLearning while it verified the platform; anyone retrying that weekend was fighting a policy, not a bug.
- Look for a blanket extension before writing to anyone. Adelaide University issued one automatically in May 2026; the finals section below shows what it and other universities did, and when an individual request is still needed.
- Treat any Canvas-branded email asking for a password reset as phishing, and go back in only through your university's own portal once it announces the all-clear.
During a suspension, the university's all-clear is the only fix that counts.
3. Did a Canvas Release Change Something?
Instructure ships feature releases to production on the third Saturday of every month and code deploys every other Wednesday; the beta environment is refreshed every Saturday. A feature that changed on Saturday reads as broken on Monday morning. Release notes are published on the third Wednesday of the month, so the change is usually documented before it lands.
If a button moved or a page looks different after a weekend, start here.
The fix: read the release notes before reporting a bug
- Check the calendar. If the most recent Saturday was the third of the month, open that month's Canvas Release Notes in the Instructure Community and search for the feature by name.
- Hard refresh with Ctrl+Shift+R or Cmd+Shift+R so the browser drops cached scripts from the previous version, then look for the feature's new location before assuming it is gone.
- If it is still broken, use Report a Problem in the Help menu and quote the release date, which helps support match the report to a known issue.
Most release-day bugs are relocations. The notes say where things went.
4. Is It Your Campus Login or Course Setup?
The address matters. canvas.instructure.com serves Free-For-Teacher accounts, not university enrollments; your institution's own Canvas URL sits behind its identity provider, and an outage there looks identical to a Canvas outage. See our Adelaide University Canvas and MyUni login guide for a worked example. Inside the course, an unpublished site, a concluded term or an enrollment that has not processed will hide one course while everything else loads.
Status page green, login failing: that combination is almost always this layer.
The fix: test campus sign-on, then check the course dates
- Sign in to campus email or the library. If that fails too, the fault is upstream of Canvas and campus IT owns it; no Canvas setting will help.
- If Canvas loops back to the login screen, clear cookies for the Canvas domain only, not the whole browser, so your other campus sessions survive. A stale session cookie is the usual cause and this clears it without side effects.
- For a course that never appears, open Courses, then All Courses, and read the term dates. Email the coordinator with your student ID and the exact course code; only they or the enrollment office can change this, and the 24/7 Canvas hotline will send you to them anyway.
Two of these three fixes belong to someone else. Send the email early.
5. Is Your Browser Blocking Canvas?
Instructure supports only the current and first previous major release of Chrome, Firefox, Edge and Safari; Brave is not supported. Safari blocks third-party cookies by default, which breaks tools that load inside an iframe: publisher quizzes, video players, attendance tools. Instructure's own engineering blog documents the mechanism. Chrome's secure-by-default cookie model has the same effect on some tools.
Two symptoms: the "minimum requirements" warning, or a page that loads with an empty frame inside it.
The fix: update the browser and allow cookies for Canvas
- Update to a supported browser and retry in a private window, which strips most extensions and cached state out of the test.
- For a blank embedded tool, open it in a new tab if the link offers one; otherwise allow cookies for your Canvas domain, or in Safari turn off Prevent cross-site tracking for the session and turn it back on afterward. Instructure's engineering team documented this block in its Safari 13.1 write-up.
- If the page itself will not render, hard refresh once. If it still fails, the cause sits higher up this list, not in the browser.
Current Chrome or Firefox with no shields is the setup Canvas Community answers recommend first.
6. Is a Canvas Extension Breaking It?
BetterCampus (formerly BetterCanvas), Tasks for Canvas and Canvas+ rewrite the dashboard with injected scripts, so a Canvas release can break them overnight. On September 9, 2025, a BetterCampus update left students at a California school district unable to open quizzes or log in; the district's technology team found that removing the extension fixed every case, and blocked it. "Better Canvas to-do list not working" is almost always this.
Layout wrong, to-do list gone, quiz refusing to open: that is the extension, not Canvas.
The fix: disable the extension and reload
- Load the same page in a private window. If it works there, an extension is the cause.
- Disable BetterCampus, Tasks for Canvas and Canvas+, reload, then re-enable them one at a time until the page breaks again; check that extension's update page for a known issue before reinstalling.
- Keep UI extensions off during quizzes and for the week after a third-Saturday release, and check whether your institution keeps an approved-extension list, because a blocked extension looks identical to a broken one.
Customized dashboards break first after a release. Plain Canvas rarely does.
7. Is It Your Network, App or Upload?
Campus Wi-Fi, a VPN and DNS filtering can all block Canvas while mobile data works. The Canvas Student app needs a recent OS (institution guides from 2025 cite iOS 16 and Android 8 or later), and Instructure lists mobile browsers as unsupported. Uploads fail for their own reasons: the default personal file quota is 50 MB, graded submissions are exempt, and a single file cannot exceed 500 MB.
Works on your phone's data but not on the library Wi-Fi? This layer.
The fix: switch networks, update the app, check the quota
- Switch from campus Wi-Fi to mobile data, or the reverse, and drop any VPN. An upload that fails on one network and succeeds on another is a network problem, not a Canvas one.
- Update Canvas Student and confirm your OS is inside the supported window. Anything graded belongs in the app or in a desktop browser, since mobile browsers are unsupported.
- For a rejected upload, open Account, then Files, to read your quota, and keep single files under 500 MB. Graded submissions do not count against the 50 MB, so a quota error usually comes from discussion attachments or personal files you can delete.
All seven side by side, with ownership made explicit:
Two failure points survive every fix above.
A quiz that crashes mid-attempt inside an embedded tool, and a submission that shows as uploaded on your screen but never reached the gradebook. Both get the same treatment: screenshot, timestamp, instructor email inside the window. And whatever the cause, the last step never changes: sync the course out of Canvas before the next failure.
When Do Canvas Outages Actually Happen?
Instructure's status page for the fortnight of September 8–22, 2026 shows what ordinary Canvas trouble looks like: seven logged incidents, five of them on Canvas itself, covering slow page loads, New Quizzes errors, 404s after creating an item and SCORM package failures. Four of the five were resolved within 14–33 minutes of the first post.
Small, partial, quick. That is the normal pattern.
The two that changed grades were different in kind. The AWS outage removed the platform for about 16 hours during a Monday of US classes; the May shutdown removed it for hours at Instructure's end and for days at institutions that chose to stay disconnected until they had tested the platform themselves.
The timing is not random. October 20 fell in the middle of the US fall semester; May 7 fell inside the final-exam window at Arizona State University and inside Adelaide University's assessment period, which is why both universities issued extensions rather than waiting it out.
The pair of cards shows the practical difference: one outage ends when Instructure's engineers finish, the other ends when your own university decides it is safe.
Region matters too. A us-east-1 incident need not touch instances hosted in Sydney or Frankfurt; the status page shows each region on its own line.
One limit on all of this: the status page shows only what Instructure logs. Campus-side outages never appear there.
What If Canvas Goes Down During Finals?
Universities now have a playbook, and knowing it changes what you ask for.
Adelaide University granted every student an automatic extension to Friday, May 15 for any assignment due between May 8 and May 11, rescheduled the online classes lost on May 11, and pointed students to its Technology Service Desk for urgent support. In October 2025, FSU recommended extensions where appropriate, and Clemson's IT office told students to ask instructors directly about deadlines and communication channels.
Blanket extensions arrive by email. Individual ones you have to ask for.
The protocol has four moves. Screenshot the error with the time visible. Check your university's IT status page and student portal for a blanket policy before writing to anyone. Email the coordinator with the screenshot and the Instructure status link if the incident is platform-wide. Then keep revising from the synced copy, because an unreachable Canvas does not move the exam date.
Two AskSia features carry that week. Reminders built from the assignment due dates the extension captured keep arriving by email, push and the web calendar, so a missing Dashboard does not hide a deadline. Mock Exam mode drills the synced lecture material in exam format with auto-graded rationale, which matters most when the practice quiz inside Canvas is the thing that will not open.
For courses you never synced, the public Explore library holds course bibles for Adelaide, UTS, RMIT and the University of Melbourne that need no LMS login. Pair them with our research-backed exam study methods and, if the outage lands the night before, the day-before memorization plan.
How Do You Contact Canvas Support?
There is no universal Canvas customer service number. Support runs through the Help icon in Canvas's left-hand navigation, where students at subscribing institutions see three options: Chat with Canvas Support (Students), Canvas Support Hotline (Students), and Report a Problem, which opens a ticket by email.
The hotline number is specific to your institution.
Oregon State University publishes 1-844-329-3084 for its students; Nova Southeastern University publishes 1-844-865-2568. Both run 24/7. Neither will help a student enrolled elsewhere.
Cannot log in? Then you cannot see the Help menu either.
In that case, call campus IT. Adelaide University routes urgent technical support through its Technology Service Desk on (08) 8302 5000, and Virginia Commonwealth University routes Canvas calls through its IT Support Center with a menu option for 24/7 vendor support. Keep a second channel ready too: Instructure's own support phone system logged connection issues on September 14, 2026, and its ticketing provider had a disruption on September 16.
Frequently Asked Questions
Is there a problem with Canvas today?
Open status.instructure.com and read two things: the banner, which says All Systems Operational or names an active incident, and the component list, which breaks Canvas into LMS, Mobile, Studio, Catalog and others and shows seven AWS regions on separate lines. An incident on one region can leave your instance untouched, so match the region to your institution before assuming the worst. Two more checks take a minute. Instructure's per-instance history at statushistory.instructure.com shows uptime for your school's own Canvas, and Downdetector's report volume tells you whether other students see the same thing; its Canvas baseline is roughly 5–10 reports an hour, and it reached about 5,000 an hour during the October 20, 2025 outage, per The Emory Wheel. Subscribe to the status page by email or SMS so the next incident reaches you before your instructor's message does. If everything shows green, the fault is on your campus or your device, and the triage table above tells you which.
Why is my Canvas not working when everyone else's is?
When classmates can log in and you cannot, the platform layer is cleared and the fault is on your side of the screen. The usual suspects: a browser outside Instructure's supported window (only the current and previous major release of Chrome, Firefox, Edge and Safari; Brave is not supported), a privacy setting that blocks third-party cookies, an extension such as BetterCampus or Tasks for Canvas that broke after a release, and an expired single sign-on session that loops back to the login page. A second scenario is a course that appears for others but not for you, which points to an enrollment that has not processed or a section-level setting; only the coordinator or enrollment office can change that. Test in a private window with extensions off. If Canvas works there, the culprit lives in your browser profile, and re-enabling extensions one at a time names it within five minutes; if it still fails, send campus IT the exact error text and the time.
Why was Canvas shut down?
Instructure itself took Canvas offline on May 7, 2026. After an unauthorized actor changed the pages some users saw on login, the company moved the platform into maintenance mode to stop further access, then confirmed the entry point was a flaw tied to its Free-For-Teacher accounts and shut those accounts down. The breach had begun on April 25, was detected on April 29 and was disclosed on Instructure's status page on May 1; the data involved included usernames, email addresses, student ID numbers and messages, with no evidence of passwords or financial data, according to Instructure's incident update page and the US Department of Education's Federal Student Aid alert. Many institutions then extended their own downtime: Adelaide University kept myLearning off until 5 p.m. on May 11, and QUT and Swinburne were still offline that afternoon. On May 11, Instructure said it had reached an agreement with the actor and had received confirmation the data was destroyed. If you were enrolled at an affected institution, treat any Canvas-branded email asking for a password reset as phishing and go through your university's own portal instead.
Why is nothing loading in Canvas?
A Canvas page that opens but shows blank boxes where a quiz, video, reading or publisher activity should be is a cookie problem, not an outage. Those items are external tools loaded inside an iframe, and they need to set a third-party cookie to work. Safari has blocked those cookies by default since version 13.1, and Instructure's engineering team has documented how the block breaks LTI launches; Chrome's secure-by-default cookie model produces the same blank frame for some tools, and UW-Madison's Learn@UW team has catalogued affected integrations including McGraw-Hill Connect and Box. Three fixes, fastest first: open the tool in a new tab (Canvas offers this on most external links), allow cookies for your Canvas domain, or in Safari turn off Prevent cross-site tracking for the session. If the whole page rather than one frame is blank, check the status page before anything else. Once the material does load, put the PDFs into AskSia's Multi-source Q&A, which takes up to 80 files and cites the page for every answer, so the next blank frame costs you nothing.
Why is Better Canvas not working?
Better Canvas was renamed BetterCampus, and it breaks for one structural reason: it injects its own scripts into pages that Instructure changes on a schedule, with feature releases on the third Saturday of each month and code deploys every other Wednesday. Any release that moves a dashboard element can blank the extension's to-do list, GPA calculator or theme until the developer ships an update. The clearest public example is September 9, 2025, when a BetterCampus update stopped students in one California district from opening quizzes or logging in; removing the extension fixed every case, and the district blocked it. Some districts and universities also block unapproved extensions outright, which looks identical to a broken extension from the student's side. Check three things: the extension's update page for a known issue, whether Canvas works in a private window with the extension off, and whether your institution keeps an approved-extension list. If the to-do list is the feature you miss, the assignment due dates synced into AskSia's calendar reminders do the same job without touching the Canvas interface.
Why can't I log in to Canvas?
Login failures split by where they happen. If the failure is at your university's sign-in page, before you reach Canvas, the fault is the campus identity provider or your multi-factor device, and Instructure's status page will show green; test another campus service such as email, and if that fails too, call campus IT. If you reach Canvas and it loops back to the login screen, clear cookies for the Canvas domain only and try a private window; a stale session cookie is the common cause. If you are typing canvas.instructure.com, you are at the Free-For-Teacher site, which Instructure temporarily shut down after the May 2026 incident, not at your university's instance; find your school's real address on its IT pages (Adelaide University calls its instance myLearning) or through the Canvas Student app's Find my school search. A course missing after a successful login is an enrollment or publishing issue, not a login issue. Keep your institution's IT help desk number somewhere other than Canvas, since a login failure removes the Help menu you would otherwise use to find it.
