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curle_tftp_notfound
Easy Fix
cURL · libcurl & CLI
libcurl code CURLE_TFTP_NOTFOUND indicates tftp notfound during protocol-specific command exchange.
Quick Answer
Error code CURLE_TFTP_NOTFOUND on your cURL libcurl & CLI means: libcurl code CURLE_TFTP_NOTFOUND indicates tftp notfound during protocol-specific command exchange.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. CURLE_TFTP_NOTFOUND 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_TFTP_NOTFOUND.
How to Fix It
1
Capture verbose output (-v / --trace) and isolate the exact phase where CURLE_TFTP_NOTFOUND appears.
2
Reproduce tftp_notfound 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_TFTP_NOTFOUND clears and transfer completes successfully.
5
Lock the fix into scripts/clients and monitor for CURLE_TFTP_NOTFOUND 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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