: The most frequent cause is a security appliance or proxy server performing "SSL Inspection". This changes the SSL certificate seen by the driver, causing Snowflake to reject the connection for security reasons.
The error message typically indicates a network-level communication failure between your Qlik environment and the Snowflake internal stage where query results are stored. result download worker error worker error qlik snowflake (4)
: Using a 32-bit driver when a 64-bit one is required for Qlik Replicate or Qlik Sense. How to Fix the Error 1. Identify Required URLs : The most frequent cause is a security
Snowflake uses multiple endpoints. You must ensure all of them are accessible. Run the following command in your Snowflake worksheet to see the full list of URLs your network must allow: SELECT SYSTEM$ALLOWLIST(); For those using Private Link: SELECT SYSTEM$ALLOWLIST_PRIVATELINK(); Ensure your network team whitelists every host and port returned by these functions. : Using a 32-bit driver when a 64-bit
: Common sub-codes like code=35 (SSL connect error) or code=60 (SSL peer certificate error) point directly to trust issues with the certificate authority (CA).
This specific error often appears when Qlik tries to retrieve large result sets (usually over 100 KB), which Snowflake stores as encrypted files on an internal cloud stage (like AWS S3 or Azure Blob). While the initial connection to Snowflake might succeed, the separate connection required to download these data chunks is being blocked. Top Causes for Worker Error (4)
: Your network may allow the primary Snowflake URL but block the specific "Stage" URLs where result data resides.