[espeed]

Indeed, my Ubiquiti Unifi AP and Edge router have also been handling the mass influx of Chromecast and Google Home devices in my house - there's one of each in almost every room in addition to the slew SmartTVs of Android devices sitting around the house -- prob at least 5 pairs of Chromecast & Google Home devices (10 total) and prob at least 30 devices in total connected to that AP full time. Over Christmas when the entire family was here there was prob double that (60 total), including all the new devices received as gifts that were connecting to the AP for the first time all at once as people were playing with and configuring the new devices they got. The Ubiquiti wifi AP and router handled it without a blink.

HOWEVER, over the last few weeks I suddenly started experiencing continual wifi drops on my Fedora 26 and 27 desktop workstation. At first I thought it was related to an overflow of devices and/or a noisy channel, but it turned out not to be the case. None of the Chromebooks or other devices were experiencing frequent wifi drops so then I thought it might be related to my workstation wifi card antenna flaking out and causing the signal to weaken and drop. It turned out the issue was also not due to a failing wifi card. It took me at least a week to isolate and resolve the issue, but it's fixed now -- no more wifi drops and the signal is strong -- turns out it was a software issue with the more or less default Fedora 26 and 27 wifi config that I had been running for years. The issue might have been exacerbated by the increased Chromecast and Google Home devices on the network, but the issue wasn't because the devices were overloading the router or AP like I (and I presume others) initially thought.

When I have time, I'll go back through my logs and command history, and distill the resolution procedure into a gist.