Ran into a situation today. Users were not able t connect to the network. Nothing wrong with the switch. As a matter of fact, the switch didn’t even register the connection. All I had available was a visual fiber optic tester. The kind you shine a light down the strand to see if it comes out the other side. Anyway, the fiber strands had gouges in them and the light poured out. The strange thing is, these strands haven’t been touched since the day they were connected to the back of the patch panel. The gear is located in a locked closet in a dry and fairly clean environment. No dust, no excessive heat or cold, etc. Could the individual fiber strands just physically broke down? Like dried out or something due to age? Unless someone was messing with that wire over the past week, this is all I can come up with at this point.
Does fiber breakdown over time? If I am not mistaken the fiber is from the late 90’s and early 2000s.
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