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Knowledge Base / Designer / Error: "CURLerror (curl_easy_perform() failed) - code=35 msg='SSL connect error'." when connect...
Error: "CURLerror (curl_easy_perform() failed) - code=35 msg='SSL connect error'." when connecting to Snowflake
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Created/Edited - 4/29/2026 by George Torres | Alteryx

Summary
Error: "CURLerror (curl_easy_perform() failed) - code=35 msg='SSL connect error'." when connecting to Snowflake.
Environment

When making a connection to a Snowflake connection, the following error occurs:
 

Connection Error:
ERROR [HY000][Snowflake][Snowflake] (4)
REST request for URL
<URL_PATH_HERE> failed: CURLerror (curl_easy_perform() failed) - code=35 msg='SSL connect error'.

 

  • Alteryx Designer
    • All versions
  • Snowflake ODBC
    • Version 2.21.01.00
  • Proxy
Cause

If using a proxy and the proxy information is missing in the Snowflake ODBC setup.

Resolution

Input the Proxy Server information as such in the Proxy field of the Snowflake ODBC configuration window:

 

http://‹hostname›:‹port_number›/

or
 

‹hostname›:‹port_number›

 

 

idea Skyscrapers

Additional Information

Snowflake Documentation (locate the Proxy section)

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