On July 29, 2020 at 11:34, Brad Humphrey said...
2) Did you install the cables in the conduit? Or did someone else do it? Wondering how much pull was done to the cables installing. Usually direct burial cable has stiffer more robust jackets and can take more than the regular 25-30 ft lbs of pull. But if it was pulled more than 50-60 ft lbs, I would suspect the cables might have been damaged. Not uncommon for damaged cables to start giving trouble years later, after having marginally worked before.
Is this in an area with a freeze & thaw? Does the conduit come out of the ground at either end and into a box or conduit fitting such as an LB? Perhaps an expansion fitting should have been installed. You might find that the UTP in the conduit has snapped in two.