# Cloudflare Error 1033: Argo Tunnel error (Cloudflare Tunnel not connected)

**Code:** `1033` · **Category:** Cloudflare · **Seen on:** Cloudflare

The hostname routes to a Cloudflare Tunnel, but no healthy cloudflared connector is running for it.

## Meaning

The DNS record points to <tunnel-id>.cfargotunnel.com. If cloudflared stopped, lost its credentials, or the tunnel was deleted/recreated with a new ID, Cloudflare returns 1033.

## Common causes

- cloudflared service stopped/crashed
- Tunnel deleted or recreated (DNS points to old ID)
- Credentials file/token missing
- Network blocking outbound to Cloudflare (port 7844)

## Quick fix

1. Check cloudflared status and logs
2. Re-route DNS to the current tunnel ID
3. Allow outbound 7844 TCP/UDP

## Detailed fix by platform

### Shell

1. 

```bash
cloudflared tunnel list
cloudflared tunnel info my-tunnel
sudo systemctl status cloudflared
cloudflared tunnel route dns my-tunnel app.example.com
```


## How to diagnose

1. **Connector** — cloudflared running/healthy?
2. **DNS** — CNAME target tunnel ID matches?
3. **Network** — Outbound 7844 allowed?

---
Source: [WhatIsMyError](https://whatismyerror.com/errors/cloudflare/1033-argo-tunnel-error)