Not that it helps you in any way, but I learned - through similar misadventures - to never trust a cable, no matter if new, from factory, self-crimped or whatever, whenever there is PoE involved[1], always test them, el-cheapo lan cable tester can be found for less than 10 Euro or so, it doesn't make sense to risk frying an expensive piece of equipment (or even a cheap one) because of a faulty cable (besides the value of the equipment or of the repair, the time down does have value).
The real PITA (at least for someone that doesn't use these tools often) is that they normally use a 9V battery, which usually is exhausted when you need to test a cable.
I have seen newer and slightly more expensive one that have a USB-C connector and a rechargeable battery (and can check also the ground for >CAT 6 cables, but had neve used one of those.
[1] Actually there are also small PoE testers, but they are IMHO a bit too expensive (40-100 Euro) for a non-professional use, I have seen also a simpler "Poe detector" that is in the 15-30 Euro range that would have been enough in a case such as yours (and even if it fried, it would have been better than the switch/router)
The real PITA (at least for someone that doesn't use these tools often) is that they normally use a 9V battery, which usually is exhausted when you need to test a cable.
I have seen newer and slightly more expensive one that have a USB-C connector and a rechargeable battery (and can check also the ground for >CAT 6 cables, but had neve used one of those.
[1] Actually there are also small PoE testers, but they are IMHO a bit too expensive (40-100 Euro) for a non-professional use, I have seen also a simpler "Poe detector" that is in the 15-30 Euro range that would have been enough in a case such as yours (and even if it fried, it would have been better than the switch/router)
Statistics: Posted by jaclaz — Fri Mar 08, 2024 2:30 pm