---
description: View tunnel diagnostic logs
title: Troubleshoot tunnels with diagnostic logs
image: https://developers.cloudflare.com/changelog/post/2024-12-19-diagnostic-logs/og.png?v=6d43a5d92be28811
---

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December 19, 2024

## Troubleshoot tunnels with diagnostic logs

[Cloudflare Tunnel](https://developers.cloudflare.com/tunnel/) [Cloudflare Tunnel for SASE](https://developers.cloudflare.com/cloudflare-one/networks/connectors/cloudflare-tunnel/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2024-12-19-diagnostic-logs/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

The latest `cloudflared` build [2024.12.2 ↗︎](https://github.com/cloudflare/cloudflared/releases/tag/2024.12.2) introduces the ability to collect all the diagnostic logs needed to troubleshoot a `cloudflared` instance.

A diagnostic report collects data from a single instance of `cloudflared` running on the local machine and outputs it to a `cloudflared-diag` file.

For more information, refer to [Diagnostic logs](https://developers.cloudflare.com/cloudflare-one/networks/connectors/cloudflare-tunnel/troubleshoot-tunnels/diag-logs/).

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