Frequest 522 Error on my domains, ips of cloudflare already whitelisted

[nishant2]

What is the name of the domain?

avidwebsolutions.in

What is the error number?

522

What is the error message?

Time out

What is the issue you’re encountering

frequest 522 error

What steps have you taken to resolve the issue?

Enabled the IPS of cloudflare in firewall at server and also asked the network provided to do the same.

What are the steps to reproduce the issue?

5/10 times i see conection timeout.

Screenshot of the error

[harshinik]

Hello,

Error 522 occurs when Cloudflare times out contacting the origin web server.

Common causes

Two different timeouts cause HTTP error 522 depending on when they occur between Cloudflare and the origin web server:

• Before a connection is established, the origin web server does not return a SYN+ACK to Cloudflare within 15 seconds of Cloudflare sending a SYN.
• After a connection is established, the origin web server does not acknowledge (ACK) Cloudflare’s resource request within 90 seconds.

As a resolution, Contact your hosting provider and share the necessary error details to assist in troubleshooting these common causes:

• An overloaded or offline origin web server drops incoming requests.
• Keepalives are disabled at the origin web server.
• The origin IP address in your Cloudflare DNS app does not match the IP address currently provisioned to your origin web server by your hosting provider.
• Packets were dropped at your origin web server.

Kindly review this document for further information : Troubleshooting Cloudflare 5XX errors · Cloudflare Support docs

Thank you !!