---
title: Error 1033 · Cloudflare Support docs
description: This error indicates an issue with resolving an Argo Tunnel.
lastUpdated: 2025-05-14T13:30:35.000Z
chatbotDeprioritize: false
source_url:
  html: https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/error-1033/
  md: https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/error-1033/index.md
---

## Error 1033: Argo Tunnel error

This error indicates an issue with resolving an Argo Tunnel.

### Common cause

You have requested a page on a website (`tunnel.example.com`) that is on the Cloudflare network. The host (`tunnel.example.com`) is configured as an Argo Tunnel, and Cloudflare is currently unable to resolve it.

### Resolution

* **If you are a visitor to this website**: Please try again in a few minutes.
* **If you are the owner of this website**: Ensure that *cloudflared* is running and can reach the network. You may wish to enable [load balancing](https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/routing-to-tunnel/lb) for your tunnel.
