# Troubleshooting

Fixes for common problems when agents run on Sanbox, from blocked websites and package registries to proxy and certificate errors.

## Pages

- [Why can't my AI agent reach a website or package registry?](https://sanbox.cloud/kb/errors/why-cant-my-agent-reach-a-website.md): Sanbox Computers block outbound traffic by default. A blocked request names the host it couldn't reach: add that host and port to the template's network policy and start a new run.