On Wed, 23 Aug 2017, Konstantin Olchanski wrote:
Hi, for permanent machines you should use wired networking. The bottom line physics is this - the wires show the direction for the e-m waves to follow the path between your computer and the network hub. Without wires (wi-fi), the e-m waves are not sure which way to go and sometimes become lost.
Thanks, Konstantin. Back in my undergrad days, I studied waveguides, and I studied twisted pairs, but never the latter analysed as an example of the former. I think you're right that it can be seen that way, although I'd imagine the maths would rapidly become horrendous, because the impedance would vary with position in a stochastic way, with a singularity each time the two wires cross. Ouch. In any case, when I tried going wireless on Thursday, I didn't experience any loss of DNS, so I couldn't try any further diagnostics. I'll have another go today.
