Unable to add Docker Registry in Satellite 6.2

Solution Verified - Updated -

Issue

Deployed Private Docker registry from scratch following this KCS article, no authentication and no TLS encryption (the same issue is observed even if authentication and/or encryption is enabled), both version 1 and version 2 API calls work fine (tested with curl, see Diagnostinc Steps for details). Still, the following error message is displayed when we try to add it to Satellite 6.2: Could not create the registry: Unable to log in to this Docker Registry - Permission denied - connect(2) for "example.com" port 5001

Environment

Satellite 6.2
Docker Registry

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