Reading through this thread, everyone seems to be experiencing similar and yet slightly different issues, so I’ll go through the general troubleshooting steps to fix all of them.
Feel free to stop whenever your app begins to sync normally, not all steps are needed.
Install the stable version:
Instead of the download link on that page, I recommend using the offline installers for this purpose:
Confirm there are no symlinks
Secondly, if your app is fine, but it’s still starting, then it could be stuck in a loop trying to parse your symlinks.
What are these? Long story short for those not in the know, these are files or folder that refer to another file or folder in your Dropbox account, or even outside the Dropbox folder.
This can include, but is not limited to, iPhoto/Photos library on Mac, system folders such as Documents/Pictures/Music/Downloads, databases, programming code, and many more.
Removing these symlinks is vital since they can cause these issues, high CPU usage, and permissions problems.
Follow step 7 on this article in order to detect the symlinks in your computer and remove any from your Dropbox folder. Generally, moving the specific files or folders to another location should remove the links.
Check your internet connection
Hilariously, this is more common than you think. You have a stable WiFi/ethernet connection to the web, other sites work, and yet the app isn’t connecting.
If multiple users are having this problem on the same network, there is a possibility that a proxy, VPN, firewall, security software, or even ISP/router issues that could be restricting traffic to the Dropbox domains.
We can’t really narrow things down for you, since you need to check this out yourself as there are so many programs out there.
We’ve had cases more often than not about built in security software on routers for home internet users, meant to protect users and children, but in doing so preventing the Dropbox desktop application from loading.
Using a remote login
Getting a black or white screen on the Dropbox app when you’re trying to sign in is a different issue.
This usually occurs when using a remote login or even a virtual machine to another device. The graphics for remote logins are usually reduced in quality, and since the Dropbox desktop application connects to the Dropbox site to sign you in, it won’t render the login page in the app while on a remote login.
Best thing to do would be to access the machine directly to login from there.
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Overall, there are many reasons for this cause, however hopefully this post should help in resolving most of the issues!
[This thread is now closed. If you have a similar or new question, you can ask here.]
