Contributed targeted documentation to the n8n-io/n8n-docs repository, focusing on HTTP ECONNREFUSED errors encountered in Docker and Node.js environments. The work involved analyzing common networking issues, identifying root causes, and outlining practical remediation steps to streamline troubleshooting. Using Markdown and leveraging DevOps expertise, the documentation provided clear guidance for developers, reducing onboarding friction and support requests. Collaboration with other contributors ensured accuracy and completeness, while the technical depth addressed both configuration nuances and real-world scenarios. This feature enhanced the reliability narrative of n8n-docs, supporting developer success by making error diagnosis and resolution more accessible within complex deployment setups.