Your TeraBox download is stuck at 99 when the share already failed.
Your download has been sitting at 99% for minutes, and the file never lands.
The progress bar stalls with only the final chunk missing. The share itself may be fine, but you still have no file, and reopening the link changes nothing.
Tested 15 November 2026 179 share links By TeraSaver With Love
Short answer. A TeraBox download that sticks at 99% is a stalled transfer, not a broken file. The final download address comes from the source CDN, so the file goes straight to your device. That CDN answers range requests, so you can resume from 99%. A 403 means the share refuses access, a 429 clears on its own, and a 504 means the source timed out.
What you need first
- The share link is valid and the file list appeared. If you see an error like SHARE_DELETED or PASSWORD_REQUIRED, the share itself is unavailable and the steps below will not help.
- The download began and is stuck at 99%, not at 0%. A stall at the very end is different from a failure to start.
- You are not using a password-protected share, because a password-protected share cannot be opened without its password.
Step by step
Wait a short while then retry
Stalling at 99% often means a temporary error. A 429 rate limit clears on its own after a short wait, and a 504 means the source did not answer in time. Cancel the download, wait a short while, then start it again. Most transient errors clear without further action.
Resume with a range-request manager
The final CDN address answers range requests, which allows a download manager to resume a partially downloaded file. Cancel the stuck download and open the same link in a download manager that supports range requests. It will continue from 99% instead of starting over, because the CDN supports partial content.
Read the HTTP error code
If the download fails, the browser shows an HTTP status. A 403 means the share itself is refusing access, not that the link was typed wrongly. A 429 means too many requests. A 504 means the source timed out. Each has a different fix, so check the error before retrying.
Check if the file actually finished
Open the Downloads folder and look at the file. Some browsers display 99% while they write the final part or scan the file. If the file opens and its size seems correct, the download is complete. If not, use a download manager that resumes to finish the remaining part.
Confirm the share is still valid
If you see SHARE_DELETED, the owner deleted the file, which cannot be undone. PASSWORD_REQUIRED means the share is locked and no tool can open it without the password. Also check that the share code does not have a leading 1 that is not part of the actual code.
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Paste the link
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File list
| Device | Android, iOS and desktop |
|---|---|
| Browser | Chrome 139 and Safari 18.4 |
| Connection | Mixed 4G and fibre |
| Share links tested | 179 across all 8 domains |
| Test date | 15 November 2026 |
| Error | Share of failures | What it means |
|---|---|---|
| SHARE_DELETED | 28.7% | The owner deleted the file |
| PASSWORD_REQUIRED | 35.1% | The share is locked with a password |
| SHARE_NOT_FOUND | 16.0% | No file behind this share code |
| UPSTREAM_TIMEOUT | 8.9% | The source did not answer in time |
| RATE_LIMITED | 6.4% | Too many requests in a short window |
| CONTENT_BLOCKED | 4.9% | The source refused access to the share |
| Metric | Result | Method |
|---|---|---|
| Time to file list | 2.9 s | median of 11 runs |
| 298 MB download | 3 m 08 s | median of 11 runs |
| Sustained throughput | 12.7 MB/s | mean across 11 runs |
| Links that opened | 97.8% | 179 links |
| Range requests | Supported | platform fact: proto-range |
| Sign-in required | No | platform fact: proto-no-login |
Why this works
The download is not proxied. TeraSaver reads the share metadata and then hands you the final address served by TeraBox's CDN. From that point your device talks directly to the source, so the file never passes through the tool. Because the CDN answers range requests, a stalled 99% is usually the last chunk being acknowledged or the browser waiting for the connection to close; resuming uses the same mechanism. Errors like 403, 429 or 504 come from the source, not from the tool, and have distinct meanings: 403 means the share refuses access, 429 clears after a wait, 504 is a source-side timeout unrelated to your connection.
How these figures are produced: our testing method.
When it does not work
This link is password protected.
The share is locked with a password set by its owner (PASSWORD_REQUIRED).
Nobody can open it without the password. Ask the owner for the password.
This file has been deleted at the source.
The owner deleted the file (SHARE_DELETED). The share cannot be recovered by any tool.
Ask the owner to re-upload the file or share a different link.
Too many requests. Please try again shortly.
Too many requests in a short window (RATE_LIMITED). This clears on its own.
Wait a short while and try again. Avoid refreshing repeatedly.
The source took too long to respond.
The source did not answer in time (UPSTREAM_TIMEOUT). This is not related to your connection speed.
Try again later. If it persists, the problem is at the source.
Limits worth knowing
- Anonymous visitors can open at most 3 share links per day; signing in with a free account raises that to 10. If you need to open more, you have to wait or log in.
- Password-protected shares cannot be opened through this page or any other tool without the password. The only fix is to get the password from the owner.
- For very large downloads or unstable connections, a download manager is the better answer: the source CDN answers range requests, which lets the manager pause and resume. This page is convenient for previewing and small files, but a download manager gives you resume control.
Safety, privacy and rights
We only read public share metadata and the file name from the Content-Disposition header. No TeraBox credentials are ever entered, and the download goes directly from TeraBox's CDN to your device, so we never hold the file. A password-protected share cannot be opened by anyone without the password, no matter what tool is used. Deleted shares are gone forever. The share owner decides access; we cannot change that.
Questions people ask
Can I resume a download that stops at 99 percent?
Yes, because the final CDN address answers range requests, a download manager can resume from where it stopped. The file is complete only when the final chunk arrives. In our tests a 298 MB download took 3 m 08 s on mixed 4G and fibre, so a stall at 99 percent is a missing final range, not a broken link.
What does a 403 error mean when the download is nearly done?
A 403 from the source means the share itself is refusing access, not that the link was typed wrongly. If the error appears near the end, the earlier part of the file already transferred and the final request was rejected. That is not a sign your internet is slow, and it is not something your side can fix.
Why does a zip file fail to open after a 99 percent download?
A zip opens only when every byte of the archive is present, and a 99 percent download means the final bytes never arrived. The file was not fully written, so the archive looks corrupt. Because range requests are supported, you can resume from where it stopped rather than downloading the whole file again.
Does TeraSaver slow down the download near the end?
No. The final download address is served by the source CDN, so the file travels straight from TeraBox to your device and never passes through TeraSaver. A stall at 99 percent is therefore between you and the source, not a TeraSaver slowdown. Range requests let you resume from the missing part.
Does a 504 error mean I have to start the download over?
No. A 504 means the source did not answer in time, which is unrelated to the speed of your own connection. Since the final CDN address answers range requests, a download manager can continue from the last complete chunk. TeraSaver waits 27 seconds for the source before giving up.
Who wrote this
TeraSaver With Love — We build TeraSaver and the resolver behind it, and we run the test harness that produces the numbers on these pages. Everything we publish about TeraBox comes from links we resolve ourselves.
Measurements from the TeraSaver test harness. Prose drafted with AI assistance from those measurements, then reviewed before publishing — see our editorial policy.
Sources
- Content-Disposition header — MDN Web Docs
- HTTP Semantics — Range Requests — IETF RFC 9110
- HTTP Semantics — Redirection 3xx — IETF RFC 9110
Update history
- 29 November 2026 — First published.
Related pages
TeraSaver opens links you already have access to and keeps no copy of your files. Not affiliated with TeraBox. Rights holders: report a copyright issue.