# Box: [Medium] Issues with Uploads and Downloads

- Provider: [Box](https://outages.cc/box.md)
- Type: Incident
- State: Resolved
- Worst impact: Partial outage
- Started: 2026-08-04 20:23 UTC
- Resolved: 2026-08-04 20:44 UTC (lasted 22 min)
- Components: Uploads/Downloads
- Official update: https://stspg.io/ldkcrysdxtkd

## Updates from Box

### postmortem, 2026-08-11 02:54 UTC

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. # Analysis A temporary network connectivity disruption impacted a small part of our load balancing fleet, causing a spike of TCP retransmit errors. Our engineering team mitigated the impact by redirecting traffic away from the affected region, which restored normal upload operations and resolved the errors. This incident highlighted opportunities to improve observable signals and alerting for TCP retransmit errors. # Corrective Actions Box has initiated the following corrective actions: * Improve monitoring and alerting for the isolated TCP retransmit issues. * Review and update operational runbooks for isolating problematic instances and for capacity management to shorten time to mitigation. ‌ We a

### resolved, 2026-08-04 20:44 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.

### investigating, 2026-08-04 20:23 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.