There’s a special kind of confidence that comes from being told “it should just work”—especially when it comes to networking gear. In this case, the guidance was simple: adjust the routing table distance value on a Ubiquiti UISP Router Pro and failover would behave exactly as expected. But as any seasoned network engineer knows, “should” and “does” don’t always live in the same neighborhood. That’s where lab testing proves its worth. By recreating real-world conditions in a controlled environment, you move from assumption to certainty, validating not just configuration changes but the actual behavior of the system under stress.
