I've been using steam link for years through the hardware and/or the apps. Lately, I've been using primarily the apps (android tablet, pixel/android phone, google TV app) and many times I will have this issue where my controller inputs will "freeze" for a few seconds. When the problem is happening, it will happen the entire session every 30 seconds or so. For example I'll be controlling a character with dual stick and suddenly I will be unable to do anything while I continue to spin around for 1-2 seconds (I.e., my last input is frozen in place). My performance overlay shows no drop in network performance or ping or loss or anything. Sometimes I can remedy the problem by restarting everything (devices, PC, network devices) but I can't pin down what is causing the issue. I thought it was only happening when my wife was streaming tv at the same time in another room but I've experienced the problem at other times as well. Happens with all of my controllers (and touch controls) so it isn't a controller issue.