Effect of Internet Service Quality on Streaming?


I’ve struggled for a long time with sound getting much, much worse around dinner time, and in some rare cases I don’t get depth, clarity, dynamics and imaging back until around midnight. Like many people I’ve attributed this to noise on my AC lines. But recently I’ve been wondering if maybe internet service quality is at least contributing to the issue in some manner. When I run tests it appears that speed, jitter, and latency are all higher at times when the sound is poor. That got me wondering if anyone knows whether one type of internet service is better than another for HiFi streaming? For example, is ADSL or DSL better, or does it matter? And what about speed? Particularly interested in anyone who has real world experiences from experimenting in this area…
nyev

Forgot to mention, I’ve tried several conditioners (Torus RM20, Audioquest Niagara 5000, Puritan PSM156, others). I also have a PhoenixNET Innuos switch with Audioquest Diamond Ethernet cables.  And I have dedicated 20A AC lines, Shunyata outlets in my wall, etc.  All of which makes things better but the delta between good and bad periods remains.  It’s just the bad periods are less bad and the good periods are even better.

You’ve covered most of the bases, and I can’t answer your question about internet services. However, one suggestion is adding optical isolation on the network, it’s a cheap experiment. 

ADSL/DSL runs over copper pair phone lines. Ever see the connections in Krone boxes using blades? The diodic interface there alone can’t be good. Have you tried cable or fibre?