Box experienced a major incident on August 4, 2026 affecting Uploads/Downloads and Uploads/Downloads, lasting 21m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Aug 04, 2026, 08:23 PM UTC
Our team is investigating an issue with Uploads and Downloads in Box. Users may see errors or slowness when attempting to upload or download items. We will provide additional information as it becomes available.
- resolved Aug 04, 2026, 08:44 PM UTC
Our team has taken steps to remediate this issue and the uploads and downloads service has returned to full functionality. If you continue to experience any issues, please contact Box Support at https://support.box.com.
- postmortem Aug 11, 2026, 02:54 AM UTC
_Notice and disclaimer: Box is providing this preliminary information subject to further review and analysis. To the best of our knowledge, this is the current state and we may update as more information is confirmed._ On August 4, 2026 between 12:10 PM PDT and 1:20 PM PDT, some customers experienced failures and delays when uploading files to Box. The problem was caused by a routing issue on our frontend load balancers. We restored service by rerouting upload traffic and provisioning additional capacity. We are conducting a full engineering postmortem and our overview is subject to change with further analysis and findings. In the event our continuing investigation yields further substantive findings, we may publish additional analysis after the conclusion of the full engineering postmortem. We are continuously working to improve Box and want to make sure we are delivering the best product and user experience we can. We hope we have provided some clarity here and we would be happy to answer any questions you may still have regarding this matter. Sincerely, The Box Team