Dropbox currently doesn't support this kind of proxy authentication. Some corporate networks are behind HTTP proxy servers that use NTLM authentication. If you’re not sure if Dropbox is supported on your corporate network, contact your organization's network administrator to find out. The Dropbox app may not install or sync on corporate networks. Why can’t I use Dropbox on a corporate network? Note: If you’re not the administrator on the Mac computer you’re trying to install Dropbox on, and you’ve tried these troubleshooting steps, you may need to install manually.

If you’re using a Dropbox Business account, contact your team admin and make sure they’ve approved your device for installation.

If you’re trying to run Dropbox on a corporate network (an organization’s WiFi), make sure it’s supported.

Find and install the latest version of the Dropbox app for your devices or operating system.

Make sure you’re installing the latest version of the Dropbox app.

Make sure your computer meets the minimum system requirements to run the Dropbox app.

If you see a “Cannot establish a secure connection” error message, follow this guide.

If it is, you can manually configure your firewall to work with Dropbox using this guide.

Make sure your antivirus software or firewall isn’t blocking the installation.

Troubleshooting for failed installation of the Dropbox app on your computer

They both install the Dropbox app, but the full installation doesn’t require an internet connection.

If the Dropbox app on your computer won’t install, the simplest solution is to try downloading the full installation instead of the regular installation.

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