Bad punches at the end of your runs is one possibility. Cheap/bad cable is another.
Another - maybe more likely - explanation is that the cable runs parallel to some electrical wire and induction is generating RFI on your CAT6 cable.
phoenixlives65
joined 11 months ago
Unless there's a strong academic reason, it's probably more work than it's worth for the average person. It becomes a vector for attack, and there's external infrastructure that has to be maintained as well (DNS, SPF, DKIM, etc)