# E2B: Template builds failing on Ubuntu package installs

> E2B template builds that install Ubuntu packages with apt can fail. Template builds that do not install Ubuntu packages are not affected. Running sandboxes and sandbox creation are not affected. E2B has identified the issue: Ubuntu package servers are unreachable. E2B monitors the issue.

- Provider: [E2B](https://outages.live/e2b.md)
- Type: Incident
- State: identified
- Worst impact: Degraded performance
- Started: 2026-11-11 16:02 UTC
- Official update: https://status.e2b.dev

## Updates from E2B

### identified, 2026-11-11 17:00 UTC

Some template builds are failing when they install packages with apt. Ubuntu's package servers ( ) are currently unreachable, so build steps that run apt-get update or apt-get install may fail. Running sandboxes and sandbox creation are not affected. If your build fails on an apt step, please retry it or wait once the upstream issue is resolved. Templates that don't install Ubuntu packages are expected to build normally. We're monitoring the issue and will post an update when builds are back to normal.

### identified, 2026-11-11 16:03 UTC

Some template builds are failing when they install packages with apt. Ubuntu's package servers ([security.ubuntu.com](http://security.ubuntu.com)) are currently unreachable, so build steps that run apt-get update or apt-get install may fail. Running sandboxes and sandbox creation are not affected. If your build fails on an apt step, please retry it or wait once the upstream issue is resolved. Templates that don't install Ubuntu packages are expected to build normally. We're monitoring the issue and will post an update when builds are back to normal.