I finally stopped trusting my switch's uplink LED after a fiber tech in Plano showed me packet loss on a $200 cable

Quinn Nguyen · 2026-10-11T08:55:03.54978+00:00

I was at a client site in Plano last month watching a tech run a 5 minute test that showed 2% packet loss on a cable my switch said was fine, and now I test every uplink before I blame the config, so what tool do you all actually use to catch bad cables before they cause weird intermittent issues?

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I finally stopped trusting my switch's uplink LED after a fiber tech in Plano showed me packet loss on a $200 cable | Commercial Networking - HW Forums