How to fix Cloudflare Error 522?

Cloudflare Error 522 occurs when Cloudflare cannot connect with the origin web server.

This error can occur due to several reasons, including:

Server downtime or maintenance: If your server is down for maintenance or experiencing downtime, Cloudflare won't be able to connect with it.

Server overload: When an origin server receives excessive requests, it may be unable to respond on time.

Firewall or security plugins: The first thing you should do is check your server's firewall settings. Cloudflare uses specific IP addresses to connect to your server, and if these addresses are blocked, it can cause Error 522. To fix this issue, ensure that you have allowed Cloudflare's IP addresses in your firewall settings.

DNS misconfiguration: If your domain DNS settings are not configured properly, Cloudflare won't be able to locate your server, resulting in an Error 522.

Server misconfiguration: If your server is not configured correctly, Cloudflare won't be able to connect with it.

KeepAlive disabled: KeepAlive messages are activated by default by Cloudflare. However, if they are turned off, the connection setup may fail.

To fix Error 522, you can try the following solutions:

Check your server status: Verify that your server is up and running and not experiencing any downtime or maintenance. The Cloudflare error 522 is often caused by an overwhelmed web server that cannot handle HTTP requests, particularly on shared hosting servers. To resolve this issue, ensure the origin web server is active and can accept HTTP requests.

Another possible cause of your origin server malfunctioning is the high volume of requests to your website. It is advisable to monitor your usage levels and avoid exceeding any limits imposed by your hosting provider.

For Accuweb users, you can access this information by going to cPanel > Resource Monitor option and reviewing the following:

CPU usage refers to the amount of Central Processing Unit (CPU) consumption. It is best to keep this below 80% to ensure optimal performance.
Memory limit specifies the amount of memory your account can process.
Processes, which indicates the total number of processes in your account.
Bandwidth refers to the amount of data transmitted in a fixed period of time.

You can refer to this article for further information.

Disable security plugins or firewalls: If any security plugins or firewalls are installed on your web server, try disabling them temporarily to see if that resolves the issue.

Check your DNS settings: Ensure that your DNS settings are configured correctly and that your domain points to the correct IP address. If you've changed your DNS record, it may require up to 24 hours to propagate across the globe. However, purging the Cloudflare cache can make the process faster.

Configure Cloudflare correctly: Ensure that Cloudflare is configured correctly with your server and that the SSL/TLS settings match. If your SSL certificate is not properly configured, it can cause connection issues with Cloudflare. To fix this, check that your SSL certificate is installed correctly and configured on your server.

Cloudflare status: If your firewall and SSL certificate settings are correct, the problem may lie with Cloudflare. Cloudflare's servers may be down or experiencing issues, resulting in connection timeouts. In this case, you can check Cloudflare's status page [https://www.cloudflarestatus.com/] for any known issues.

Website performance: If your website takes too long to load or uses too many server resources, this can cause connection timeouts with Cloudflare. To optimize your website, you should consider optimizing your images, minimizing the use of plugins, and optimizing your code.

Disable Cloudflare: If none of the previous methods work, disable Cloudflare CDN service temporarily.

Contact your hosting provider: If you have tried all of the above solutions and are still experiencing the Error 522, contact your hosting provider for further assistance.

In conclusion, Error 522 can be caused by a variety of issues when using Cloudflare, but there are several solutions that you can try to fix the problem. By checking your firewall and SSL certificate settings, contacting Cloudflare if necessary, and optimizing your website's performance, you can resolve connection timeout issues and ensure that your website is accessible to your users.


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