Worked on the opentensor/bittensor repository to enhance network reliability by implementing a resilient external IP lookup mechanism with failover support. Developed a fallback system in Python that continues searching for an external IP address across multiple providers when failures occur, using granular exception handling to prevent crashes and maintain uptime. Incorporated comprehensive unit and regression tests to validate robustness against various provider-side and parsing errors, including AWS connection issues and malformed responses. The solution isolated fallback logic for maintainability, ensuring safer production deployments. Focused on exception handling, networking, and unit testing to reduce outage risks in critical IP discovery features.