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curle_ftp_accept_timeout
Easy Fix
cURL · libcurl & CLI
libcurl code CURLE_FTP_ACCEPT_TIMEOUT indicates ftp accept timeout during protocol-specific command exchange.
Quick Answer
Error code CURLE_FTP_ACCEPT_TIMEOUT on your cURL libcurl & CLI means: libcurl code CURLE_FTP_ACCEPT_TIMEOUT indicates ftp accept timeout during protocol-specific command exchange.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. CURLE_FTP_ACCEPT_TIMEOUT was returned while libcurl handled a request stage related to protocol-specific command exchange.
  2. Command options, endpoint behavior, or intermediary network components are incompatible with expected transfer flow.
  3. Runtime environment specifics (proxy, cert store, protocol support, or callback behavior) contributed to CURLE_FTP_ACCEPT_TIMEOUT.
How to Fix It
1
Capture verbose output (-v / --trace) and isolate the exact phase where CURLE_FTP_ACCEPT_TIMEOUT appears.
2
Reproduce ftp_accept_timeout with a minimal request against a known-good endpoint.
3
Validate protocol, TLS, DNS, proxy, and timeout options tied to protocol-specific command exchange.
4
Adjust one option at a time until CURLE_FTP_ACCEPT_TIMEOUT clears and transfer completes successfully.
5
Lock the fix into scripts/clients and monitor for CURLE_FTP_ACCEPT_TIMEOUT regression.
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
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