SQ is impacted on a SSD booted Win 10 home i7-6700k, 16gb ram PC running Roonserver/HQplayer upsampling at DSD512, with music sourced from a wired NAS or Tidal. There is a dedicated wireless router and subnet for the audio network with the above tablet, PC and NAS hardwired as the only nodes.
During playback, sound quality is enhanced whenever the display is turned off on an Apple Ipad or Android tablet. In normal operation adding physical distance between the router and tablet lowers wifi signal quality, and at around 2 bars, the sound starts to stutter. Turning off the tablet display stops this behavior.
Please let me know if there is anything else you need to know. I have friends with similar setups at several locations that have made the same observations.