We had it on a copper cable line in university. The line was hung overly-tight without slack (old job). When it got just cold enough in the winter: no connecti

We had it on a copper cable line in university. The line was hung overly-tight without slack (old job). When it got just cold enough in the winter: no connection. Warmed up: connection. Finally realized it was the line, got Comcast to redrop from pole, and situation was resolved.