Troubleshooting why loads of wlan clients dropped off

[Alpine_Messi]

Dear all,

Woke up this morning and my Google nest hub was telling me that it has fallen off the WiFi, although I haven't made any changes. This is odd enough to make me investigate.

I manually confirmed the WiFi password and it connected again, but in my routers network map I noticed there are 10-13 clients fewer than I normally have connected

How would you go about investigating what happened? I don't have remote log shipping enabled, but is there an easy way of going through my syslog etc?

Thanks in advance

 

[itpp20]

Two main causes, 1) someone else is using your wifi channel(s), 2) your AP is set to auto select a channel.
Use a wifi scanner (or your phone) to see whats around you.

 

[Alpine_Messi]

Thanks. I'll look at the channels.

Update: I think it's only affecting 2.4Ghz band, and think it could be my YazFi'd guest network.

My CCTV cameras, doorbell and Google's all fell off. My CCTV cameras tell me it happened around 2:25am. I thought maybe it could be DHCP leases ending and not getting a new one for some reason

I looked at it's config and strangely could see intranet access turned ON, when I've definitely set it to off. Mysterious.

 

[itpp20]

If for some reason the config is changed you have a different problem. Power dips/spikes are known to do this.