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IT Toolbox

Understand, diagnose and solve IT problems

522 — Connection to origin timed out

The TCP connection to the origin does not respond within the expected timeout.

Cloudflare cannot reach the IP address configured for the origin.

Cloudflare connected successfully but the origin did not return a response quickly enough.

The SIP request did not receive a final response within the expected time.

The server detected an infinite loop while processing the request.

Cloudflare received an empty, unexpected, or unparseable response from the origin server.

Cloudflare cannot establish a connection to the origin web server.

A condition sent in the request headers is not satisfied.

The client requested a byte range that does not exist in the resource.

The resource is locked and cannot currently be modified.