Canvas Exam Troubleshooting: Fixes for Loading, Login, Submission, and Log Errors

Short answer. Most Canvas exam problems trace to four things. Your browser, your network, your account, or Canvas itself. The fix for 80% of issues is: log out, clear cache, try a different browser, and email your professor before the deadline if anything is still broken. Below is the full playbook in priority order.

Before the exam (the 10 minute setup)

Five things to check before you start a high stakes Canvas quiz. They prevent most disasters.

1. Test a different Canvas page first. Open the course homepage. Click around. Make sure pages load. If they do not, you have a problem before the quiz even starts and you have time to fix it.

2. Check your time zone in Canvas settings. If your account is set to a different time zone than your course, due dates may show wrong. Settings > Edit Settings > Time Zone.

3. Close every other tab. A tab open in the background that runs a lot of JavaScript can slow down Canvas. Close anything that is not essential.

4. Plug in. Disable sleep. Sleep mid quiz is one of the most common causes of unexplained quiz log entries.

5. Restart your browser. A clean browser session avoids stale cookies and weird state. Do this five minutes before the quiz starts.

"Quiz will not load"

You click the quiz, the page spins, nothing happens. Try in order:

1. Refresh the page. Sometimes this is all it takes.
2. Hard refresh. Cmd+Shift+R on Mac, Ctrl+Shift+R on Windows. Bypasses cached files.
3. Open in a private window. Same browser, but no extensions and no cached state.
4. Try a different browser. Chrome vs Firefox vs Safari sometimes catches a browser specific bug.
5. Disable extensions one by one. Ad blockers, cookie blockers, and privacy extensions occasionally block Canvas scripts.
6. Check Canvas status. Visit status.instructure.com for outage reports.
7. Email your professor. If Canvas itself is down and the exam deadline is close, you need a written record of the issue with a timestamp.

"Quiz loads but the questions do not appear"

This is usually a JavaScript or rendering issue:

1. Hard refresh.
2. Disable browser extensions. Especially ad blockers and content blockers, which sometimes strip critical Canvas resources.
3. Check the browser console. F12 (or Cmd+Option+I), look for red errors. If they mention a domain like instructure.com, the school's Canvas may be having issues.
4. Switch browsers.

"I cannot submit my quiz"

You click Submit and nothing happens or you get an error:

1. Check your internet connection. Open another website to confirm.
2. Hard refresh. If the page loaded broken, refreshing may restore submission.
3. Take screenshots immediately. Screenshot the questions, the answers, and any error message. Include the visible timestamp.
4. Open a private window and log back into Canvas. Navigate to the quiz. Often the attempt is still there and re-submission works.
5. Email your professor with screenshots and the timestamp. Do this before the deadline if at all possible. A submission failure documented before the deadline is treated very differently than one reported after.

"Login does not work"

Cannot get into Canvas at all:

1. Verify the URL. Canvas URLs end in .instructure.com or are your school's branded domain. Bookmark links from emails or random Google results sometimes go to phishing pages or expired URLs.
2. Reset your password through your school's portal. Not through Canvas itself. Your school's SSO controls Canvas login.
3. Clear cookies for instructure.com and your school's auth domain. Settings > Privacy > Cookies and other site data.
4. Try a different browser or device. If it works elsewhere, the problem is in your normal browser.
5. Contact your school's IT help desk. Canvas itself rarely has login issues. Your school's authentication system is the usual culprit.

"Canvas page froze and I lost my answers"

If you typed answers and the page froze before saving:

1. Do not panic refresh. Refreshing without saved state can clear your work.
2. Try clicking on another question first. Sometimes that triggers an auto save.
3. If the page is truly frozen, take a screenshot of what you can see. Even partial.
4. Refresh. Log back in if needed. Go to the quiz. Most quizzes auto save answer by answer. You may find your progress is mostly intact.
5. Email your professor with the timestamp and screenshots. Document before the deadline.

"Time ran out but the quiz did not submit"

Canvas usually auto submits when the time hits zero. If it does not:

1. Refresh the page. This often triggers the auto submit.
2. If a submit button is still there, click it. A late submission with a clear timestamp is better than an abandoned attempt.
3. Screenshot everything, including the timestamp on your computer.
4. Email your professor right away. Explain what happened. Most professors will work with you.

"Canvas is slow during the exam"

Canvas slowdowns usually trace to one of:

• Your network. Test on another site.
• Your browser tabs. Close everything else.
• Background syncs (Dropbox, OneDrive, Google Drive). Quit them.
• Browser extensions. Disable temporarily.
• A high CPU app you forgot was running (Slack, Zoom).
• Canvas itself having a slow day.

If the slowdown is severe, switch to a different network (phone hotspot in an emergency) and try again.

Common Canvas error messages and what they mean

"Your session has expired." Cookie was cleared or your school's SSO timed out. Log back in.

"The page you requested is not available." Either the quiz has not opened yet, has closed, or you do not have permission. Check the dates with your professor.

"There was an unexpected error." Generic. Hard refresh and try again. If it persists, screenshot and email.

"This quiz attempt is locked." The instructor manually locked your attempt, or the time expired and Canvas could not auto submit. Email your professor.

"Quiz is no longer available." The availability window closed. Email your professor.

The last 10 minutes before the exam

A short, ordered list of what to actually do:

• Plug in.
• Restart your browser.
• Test the Canvas course page loads.
• Close every other tab.
• Quit Slack, Discord, Mail, and other notification heavy apps.
• Turn on Do Not Disturb on your laptop.
• Set your phone to Do Not Disturb or face down.
• Make sure you have an extra browser installed in case the primary breaks.
• Have your professor's email open in another window in case you need it.
• Have a notes document ready if the exam is open note.
• Take a breath. Begin.

What to do if Canvas breaks and the deadline is in 5 minutes

Calmly:

1. Screenshot the error. With visible timestamp.
2. Try a different browser or private window. This often works.
3. Email your professor with the screenshot. Include the timestamp. State plainly what is happening.
4. Do not panic submit a half done attempt. A clean failure email is usually better treated than a half submitted quiz.
5. Save your answers locally. If you can see the questions but not submit, copy your answers to a doc with the question numbers. You can submit them by email if needed.

A documented, timestamped failure before the deadline is recoverable. A silent failure after the deadline is much harder to explain.

FAQ

Can my professor see that Canvas was broken when I tried to submit? Sometimes. Canvas server logs may show 500 errors or timeouts that affected your account. Your professor cannot see those directly, but IT support can pull them if requested.

Will refreshing reset my quiz answers? Usually not. Canvas auto saves answers as you go. Refreshing the page typically preserves your state. There are rare edge cases where it does not, which is why screenshotting is important.

Can I reopen a quiz I accidentally submitted early? Only the instructor can. Email them right away. Most will let you back in if you submitted by accident and you have time.

What if my school's IT and my professor both say "not my problem"? Escalate. Department chair, dean, student ombuds office. Document everything. Most schools have an academic grievance process.

Is the Canvas mobile app a good backup if my laptop fails? Yes for emergencies. The mobile experience for quizzes is rougher than the web (some question types do not render well), but for last resort submission it works.

Related reading

• Canvas Quiz Logs Explained
• Canvas Said I Left the Screen When I Did Not
• Open Note Exams on Canvas
• Canvas Privacy Myths
• Canvas Quiz Help Complete Playbook