I have a Nest Wifi setup with a router and an access point. I have very fast fiber internet connectivity.
Over the last few weeks, I am seeing random slowdowns on a number of devices on the Nest Wifi network. The Wifi signal remains strong but the router seems to stop responding. The Google Home app becomes unresponsive and cannot show me details of the Wifi network. After a while, things recover and go back to normal.
I have reset the routers, restarted devices, and run multiple mesh tests, with no resolution. The only thing, that bizarrely works, is running a speed test via the Google Home app. This seems to kick things back to normal.
I have also independently tested the ISP model and there have been no issues with slowdowns etc. This appears to be a Nest Wifi issue.
I've been having a similar issue, the Google Wi-Fi goes offline, Google Home app becomes unresponsive, Nest app and Google Home app won't load cameras and I have to stop using Wi-Fi because even when it's not offline it seems to break. This is infuriatingly par for the course with all the Google hardware products. Quality control seems to be an insanely low priority.
Sorry to hear about the issues you're having with your network. It sounds like a really frustrating situation. Also, thanks for letting me know what troubleshooting you've tried so far. I have one thing for you to check real fast. Do you happen to have IPv6 enabled in your WiFi settings in the Home app? If so, try disabling it and see if it has any impact on things. Let me know if you see improvement or not.
I am still seeing random slowdowns on my network. I have two Nest wifi devices set up. The odd thing is that the slowdowns seem to go away as soon as I run a "network speed test" in the Google Home application. That is very strange.
Here is the sequence of actions:
1. My device (usually a MacBook pro laptop) complains about an unstable network connection while using Zoom etc. Other devices, including a smart TV, start buffering when watching Netflix etc.
2. I launch the Google Home App on my iOS device. Navigate to the Wifi icon. It usually takes a while to get to the Wifi screen. I then click the "Run Speed test"
3. The speed test runs and I usually get the expected speeds - I have a fiber wifi at home and get the expected 800 Mbps upload / download.
4. At the conclusion of the speed test, the network just seems to go back to functioning normally.
I can't really explain this behavior but it is pretty frustrating. To confirm IPv6 is disabled, so is WPA3. I usually have around 28 - 32 devices on the network.
There's a potential bug with IPv6 and we're trying to find out what's happening there for sure. Some users have seen disabling IPv6 work out better for them, some haven't seen any difference. In most home network situations, IPv6 doesn't change much unless you're hosting servers or some more advanced networking applications, and this is why IPv6 isn't enabled by default. Obviously if you have a need for IPv6, disabling it is frustrating, I know. It's worth giving it a try to see how it impacts your situation for now. If an update is needed to address a possible IPv6 bug, it would be announced, but you would still need to manually enable it in your settings.