Late last week, an issue came to light that causes WiFi networks to be killed. Initially it appeared the problem is with Google Home Max smart speaker, and is affecting only TP-Link routers (specifically the Archer C7).
But now, with more users reporting their use cases, it seems the issue is more widespread than what we initially thought. Not only users with different TP-Link routers, but even those using Linksys, Synology, and other routers are also reporting the same problem.
And in addition to those using Google Home Max, users with other Home devices (and even Chromecast dongles) are reporting that taking their unit off the network resolves the issue for them. Some are also suspecting their Android phone (with latest Oreo update) is causing the issue, but those reports are very few.
For its part, TP-Link has released a new beta firmware for the Archer C7 that's aimed at resolving the problem, but it hasn't worked for all users. However, you can still give this firmware a try and see if it works for you.
Google hasn't officially responded the problem yet, although an expert at the company's official forums had earlier said the company is working to fix it.
I have a Samsung Android phone. I disconnected it from my Google Wifi network 2 weeks ago because it would take it down 10 times or more per day. The moment I took it off the Wifi network, my issues disappeared.
I just switched from an iPhone to an android and I was wondering why every time I tried to download an update or some large music files, my Wi-Fi would disconnect? I took down my Chromecast and Roku but didn't help. Could be the android phone?