Dropbox Not Syncing on Your Desktop? Get Files Moving Again
Your files aren’t moving between your computer and dropbox.com — the Dropbox app shows “syncing” forever, “waiting to sync,” or just skips a file.
Why: Sync only runs while the app is open and connected. The usual culprits are a paused or quit app, an out-of-date version, being signed into the wrong account, a blocked network connection, or a filename Dropbox can’t handle.
Fix 1: Resume sync and restart the app
The fastest fix is checking that sync isn’t paused, then forcing a clean restart.
- Click the Dropbox icon in the system tray (Windows) or menu bar (Mac).
- Click your avatar (your photo or initials) in the bottom-left corner.
- If you see Resume syncing, click it — sync was paused. (If it says Pause syncing, sync is already on.)
- Still stuck? Quit and relaunch: click your avatar, choose Quit Dropbox, then reopen the app from your Start menu (Windows) or Applications folder (Mac).
The icon should change from a paused/red marker to a green check once everything is up to date.
Fix 2: Confirm the connection, account, and clock
Dropbox can’t sync if it’s offline, signed into the wrong account, or your computer’s clock is wrong.
- Open a browser and load dropbox.com to confirm you’re online and can sign in. If the page won’t load, fix your internet first.
- In the app, click your avatar → Preferences → Account and check that the email shown is the account that owns your files. If it’s wrong, click Sign out and sign back in with the correct one.
- Check that your computer’s date, time, and time zone are set to update automatically — a wrong clock breaks the secure connection Dropbox needs.
Fix 3: Update Dropbox and check the file itself
Old builds have sync bugs that newer ones fixed, and some files simply can’t sync.
- Click your avatar and look for an Update available prompt, or reinstall the latest version from dropbox.com/install to force an update.
- Make sure the file is actually inside your Dropbox folder — files saved anywhere else won’t sync.
- Rename any file that uses characters Dropbox rejects, such as
*,/,\,<,>,:,",?, or|. - Temporary files (names starting with
~$or.~) won’t sync — that’s normal; close the program that created them.
Fix 4: Allow Dropbox through your firewall and antivirus
Security software can silently block the sync connection.
- In your firewall and antivirus settings, give the Dropbox app full permission to connect.
- If you’re on a work or school network, a proxy or blocked domain may stop sync — ask your IT team to allow Dropbox.
- As a last resort, uninstall and reinstall the desktop app to clear a corrupted installation, then sign back in.
FAQ
The icon shows a green check but a file is still missing. Check that Selective Sync hasn’t unchecked that folder — open Preferences → Sync and confirm the folder is selected to sync to this computer.
Dropbox says “you must keep the app running.” Sync only happens while the desktop app is open. Set it to start automatically in Preferences → General so it’s always running in the background.
One file is stuck while everything else syncs. It’s usually open in another program or has a bad character in its name. Close any app using it and rename it per Fix 3.