On Sunday, May 13, 2018 at 12:09:42 AM UTC-7, Tim wrote:
Jason wrote in
:

In article XnsA8E053B695DAtimothybilyahoocom@
69.16.179.28, says...
Having the wires coiled like that very likely degraded the line
electrical characteristics...

Why? Twisted pairs are resistant to interference.

Yes, twisted pairs are more resistant to interference, but the conductor
diameters, wire spacing, and insulation for CAT5 and CAT6 cables are very
carefully selected...

Part of that selection is that the pairs are twisted at different pitches, so
that coupling over a long length averages to zero. But if you're only using
one pair, as in a DSL connection, and you coil it, coil #1 can couple to coil #2
because the twist pitch is the same. DSL and ADSL etc. are good at making
sense of the signals, but not perfect.

The coupling of SIMILAR twisted pairs, if they are adjacent, is not minimal.