Written byFizza Butool ZaidiIELTS teacher for 10+ years, PTE for 5Updated 30 October 2026
Problem by problem
From Duolingo's help centre on freezes and uploads, quitting, time-outs, tests not uploaded and credits.
| Problem | What happens |
|---|---|
| Test freezes or cancels midway | Retake from the beginning |
| Upload stops or fails | Retake the entire test |
| Session times out on a slow connection | Retake; this uses an attempt |
| You quit before finishing or uploading | Uses an attempt that cannot be restored |
| Test not completed and uploaded due to a technical issue | In most cases, retake without paying |
| Technical error stops upload or certification | Retake at no extra cost if attempts remain |
Internet and computer checks
Duolingo asks for at least 2 Mbps download and 1 Mbps upload and recommends a wired ethernet connection rather than Wi-Fi or a mobile hotspot (help centre). Close every program other than the test app, including browsers, calling, messaging and remote-desktop software, and do not use a VPN or virtual machine (rules, programs).
Once the test starts uploading, do not open other programs or windows and do not exit the app; depending on your speed, uploading can take several minutes (help centre).
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Getting help
If you have not received an email about a technical issue, contact support (help centre). For a refund question, contact support within 24 hours of the problem; you are not eligible for a refund if you broke the test rules (help centre).
You cannot appeal a result that could not be certified because of a technical issue; you need to take the test again (help centre). Each credit has three attempts and expires 21 days after purchase; see Duolingo test credit expiry. Rules and fees change. Check the test owner's own page before you book or pay. This guide is general information, not official advice from ETS or Duolingo.
Frequently asked questions
My Duolingo test froze. Do I lose an attempt?+
You must retake the test from the beginning. Each start counts as an attempt on your credit.
What internet speed does the Duolingo English Test need?+
At least 2 Mbps download and 1 Mbps upload. Duolingo recommends a wired ethernet connection.
Can I appeal a Duolingo result lost to a technical issue?+
No. Duolingo says you need to take the test again instead.
Is a retake free after a technical error?+
Yes, if attempts remain on your credit. If the test was not uploaded, Duolingo says you can usually retake without paying.
How long does the Duolingo test take to upload?+
It can take several minutes depending on your internet speed. Do not close the app while it uploads.
Keep reading
Related
- How many times can you take the Duolingo test?
- Duolingo English Test rules
- Duolingo English Test not certified
- Duolingo room and ear scan
- All 3112 guides
Guide updated on 30 October 2026. Individual prices and policies may have earlier observation dates. Confirm current details on the linked official pages before you book or apply.
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