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