Wifi grossly contaminates your router with RFI, noise is the enemy of maximizing streaming potential. Obviously its isolated, this not the issue. The issue is every link in the streaming chain needs to be optimized. Noise in streaming components obscures the signal to some extent meaning loss of resolution/transparency, you can't get back what you lost in an upstream component. Disabling the wifi on my router was of more benefit than adding the lps. Also, since my router situated very close to audio system, strong RFI was no doubt contaminating cables and other components.
Also, be mindful that while each individual tweak may not be that noticeable, the cumulative effect is assuming one's entire system is sufficiently resolving/transparent.

