The maximum file size limit for individual uploads to Box Enterprise is 15 GB. To confirm the file size limit
for your account, log into Box. In the upper – right hand corner, click your account icon. From the menu
that displays, click Account Settings. On the page that displays, scroll down to the Account Details
section. Your max file size is listed in this section. You will have an Enterprise file size, with respect to
OSSEs Box account, which is an Enterprise Account.
Troubleshooting Uploads to Box
If you are having trouble uploading files or folders, please try the following troubleshooting steps:
• Ensure your web browser is the latest version of Internet Explorer, Safari, Firefox or Chrome.
• Try clearing your browser's cache.
• Verify that you are using one of the recommended operating systems.
• Verify that the file's name is valid. Box only supports file or folder names that are 255 characters or
less. File names containing non-printable ascii, "/" or "\" names with leading or trailing spaces, and
the special names “.” and “..” are also unsupported. Box supports only Unicode Basic Multilingual
Plane (BMP) characters in file and folder names.
• Verify that the file or folder's path on Windows machines is under the 255-character Windows
limitation. Folder paths that exceed 255 characters may truncate the content's name before
uploading to Box.
• Make sure you are uploading files smaller than the maximum for your account type.
• Try uploading using the Upload Files method instead of Upload Folders, or vice versa.
• Internet Explorer does not support Upload Folder, only Upload Files. If you need to upload folders,
use a different web browser.
• Check your network connection to Box. If connected to the internet with a wireless card, check to
see if the connection to the internet drops intermittently. If this is the case, it’s recommended to
use the Upload Folders method.
• Try temporarily disabling or configuring your firewall to allow Box as a trusted site. You may find
that your anti-virus software includes a built-in firewall. If you are attempting to access Box from an
office setting and experience upload issues, contact your IT administrator or internal Help Desk.
• Proxy servers may sometimes cause failed uploads. If you see the error message: An error occurred
with the upload. Refresh the page and try again. Contact your IT department or Help Desk and ask
them to check your proxy configuration.
• Box Accelerator is a global data transfer network that improves the speed of your uploads. If you
are having issues with uploads, try turning this off temporarily:
o Go to Account Settings and click the Sharing tab along the top. Select/deselect the Enable
Box Accelerator option under Uploading Content. Click Save.
o It’s recommended to leave the Enable Box Accelerator option checked since slowness is
usually a temporary network condition that will clear itself.
Potential Causes of Slow Uploads:
Slow upload speeds can have a variety of causes. Box does not limit, throttle, cap or shape upload
bandwidth for individual files. Box does perform processing on each file which can impact the total time
it takes to complete an upload, particularly when uploading multiple files. But this does not limit the
bits/second of your machine's connection to Box. If you find that your upload is taking longer than it
should, we have listed a few reasons that may affect upload speeds.