Worked on the avocado-framework/avocado-vt repository to improve the reliability of guest virtual machine IP address retrieval in virtualization test environments. Addressed a persistent issue where the primary method for obtaining guest IPs could fail by implementing a fallback mechanism using virsh domifaddr, ensuring more consistent results across diverse setups. Enhanced the address caching strategy to accelerate subsequent lookups and reduce redundant network queries, which led to more stable and deterministic test outcomes. Utilized Python for scripting and leveraged skills in debugging, networking, and system administration to resolve test flakiness, ultimately contributing to faster and more reliable CI feedback cycles.