Worked on the ILIAS-eLearning/ILIAS repository to deliver a session idle timeout connectivity validation feature, focusing on improving reliability during intermittent network conditions. The approach involved implementing proactive web server connectivity checks before session operations, using PHP for backend development and system administration tasks. Connectivity handling was refactored to introduce a centralized getCurlConnection method, enhancing consistency and testability across the codebase. Error handling for cURL and file_get_contents was strengthened to reduce failures and unnecessary resource usage. By adding connectivity pre-checks in isApplicable, the solution avoided redundant operations, resulting in a more efficient and user-friendly session management experience.