Users report intermittent connectivity issues to a critical application. The application works sometimes but fails randomly with timeouts. Describe your systematic approach to diagnosing this problem using the tools and techniques available to a mid-level data center technician.

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Intermittent connectivity issues are among the most challenging problems to diagnose because they do not present a consistent failure that can be easily reproduced and isolated. A systematic, layered approach is essential to avoid chasing symptoms without finding the root cause.