---
title: "522 Connection Timed Out — what it means and how to fix it"
description: "Cloudflare tried to open a connection to the origin server and never got a reply. What causes an HTTP 522, what to try as a visitor, and what to check if it is your own site."
url: https://atoneplace.net/error/522/
site: "At One Place"
---

# HTTP 522 — Connection Timed Out

**HTTP 522: Connection Timed Out**

Cloudflare tried to open a connection to the origin server and never got a reply.

## What 522 actually means

Another Cloudflare code rather than a real HTTP one. Where 521 is an active refusal, 522 is silence: Cloudflare sent a connection request to the origin and the TCP handshake never completed before the timeout. That pattern — packets going out and nothing coming back — points at a firewall dropping rather than rejecting traffic, a wrong IP address in DNS, or an origin so overloaded it cannot accept new connections.

## Common causes

- A firewall silently dropping packets from Cloudflare instead of rejecting them
- The origin IP in Cloudflare's DNS pointing at the wrong or an old server
- The origin server overloaded and unable to accept new connections
- Network routing problems between Cloudflare and the origin
- The origin server's connection backlog full
- Keep-alives disabled at the origin, exhausting the port range under load

## If you're just trying to view the page

1. Reload after a minute or two; overload-related 522s often clear
2. Nothing else — the failure is between Cloudflare and the site's server
3. Report it with the Ray ID if it persists

## If it's your site

1. Check the origin firewall for DROP rules affecting Cloudflare IP ranges — dropping is what turns a 521 into a 522
2. Verify the A/AAAA record in Cloudflare points at the correct current origin IP
3. Look at server load, connection counts and the accept backlog on the origin
4. Enable keep-alives at the origin; Cloudflare relies on them and disabling them causes intermittent 522s
5. Test the origin directly from outside your network on the same port to confirm reachability

## Reference

- **Status code:** 522
- **Reason phrase:** Connection Timed Out
- **Category:** 5xx — Server Error
- **Cacheable by default:** No

## Common questions

### What does HTTP 522 mean?

Cloudflare tried to open a connection to the origin server and never got a reply. Another Cloudflare code rather than a real HTTP one. Where 521 is an active refusal, 522 is silence: Cloudflare sent a connection request to the origin and the TCP handshake never completed before the timeout.

### How do I fix a 522 error?

Reload after a minute or two; overload-related 522s often clear

### Is 522 a client error or a server error?

522 is in the 5xx range, which means server error. The request was acceptable but the server could not fulfil it, so retrying later can succeed.

## Related pages

- [500 Internal Server Error](https://atoneplace.net/error/500/)
- [502 Bad Gateway](https://atoneplace.net/error/502/)
- [503 Service Unavailable](https://atoneplace.net/error/503/)
- [504 Gateway Timeout](https://atoneplace.net/error/504/)
- [524 A Timeout Occurred](https://atoneplace.net/error/524/)
- [521 Web Server Is Down](https://atoneplace.net/error/521/)
- [520 Web Server Returned an Unknown Error](https://atoneplace.net/error/520/)
- [525 SSL Handshake Failed](https://atoneplace.net/error/525/)
- [526 Invalid SSL Certificate](https://atoneplace.net/error/526/)
- [530 Origin DNS Error](https://atoneplace.net/error/530/)
- [501 Not Implemented](https://atoneplace.net/error/501/)
- [511 Network Authentication Required](https://atoneplace.net/error/511/)

## Sources

- Hypertext Transfer Protocol (HTTP) Status Code Registry — IANA (https://www.iana.org/assignments/http-status-codes/)
- RFC 9110: HTTP Semantics — IETF (https://www.rfc-editor.org/rfc/rfc9110.html)