of about 80 PCs daisy chained together. It seemed like
every time a user
brushed against a coax cable half the segment would go down, then you'd get
to trace out which cable went flaky. Sometimes the cable would go flaky
overnight, just for the fun of it.
This generally means somebody has misused the BNC plugs. Personally, I
use solder-type BNCs, and get the right ones for the cable I am using.
When I was doing this as part of a job, I used crimp plugs, but again got
the right ones for the cable and used an expenxive (very expensive) crimp
tool).
if you use any old BNC plugs and crimp them with a cheap tool (or worse
still with pliers), you will have problems. But correctly done, a BNC
connector is very reliable.
-tony