Dropped $140 on a Fluke toner probe on a hunch, and it found a break I'd been chasing for two days

River Harris · 2026-10-10T02:55:04.784504+00:00

Last Tuesday I was at a client's office in Salem trying to figure out why a run from the server closet to the front desk kept dropping. I had already re-punched both ends twice, swapped the patch cables, and swapped the port on the switch, and I was starting to think the run itself was toast after 30 minutes of no link light. I had been getting by with a $25 no-name toner from Amazon for like two years, and it would buzz on a cable but it never told me where the break was. So I caved and grabbed a Fluke Pro3000 set for around $140, which felt dumb at the time since the cheap one technically worked. Plugged the tone generator in at the desk end, walked the run with the probe, and about 40 feet in near a zip tie that somebody had cranked way too tight behind the drywall, the tone just died. Turned out the cable was pinched so hard it had shorted a pair, and no amount of re-terminating would have ever fixed it. I re-ran that segment in about 20 minutes and the link came up first try. Money well spent, and now I'm wondering what other tools I've been cheaping out on that are costing me hours. What's the one tool you finally paid up for and it paid you back right away?

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Dropped $140 on a Fluke toner probe on a hunch, and it found a break I'd been chasing for two days | Computer Technicians - Free To Speak