curle_couldnt_resolve_proxy
Moderate
cURL · libcurl & CLI
libcurl code CURLE_COULDNT_RESOLVE_PROXY indicates couldnt resolve proxy during DNS/routing/connectivity path.
Quick Answer
Error code CURLE_COULDNT_RESOLVE_PROXY on your cURL libcurl & CLI means: libcurl code CURLE_COULDNT_RESOLVE_PROXY indicates couldnt resolve proxy during DNS/routing/connectivity path.. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Capture verbose output (-v / --trace) and isolate the exact phase where CURLE_COULDNT_RESOLVE_PROXY appears.
2
Reproduce couldnt_resolve_proxy with a minimal request against a known-good endpoint.
3
Validate protocol, TLS, DNS, proxy, and timeout options tied to DNS/routing/connectivity path.
4
Adjust one option at a time until CURLE_COULDNT_RESOLVE_PROXY clears and transfer completes successfully.
5
Lock the fix into scripts/clients and monitor for CURLE_COULDNT_RESOLVE_PROXY regression.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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