@weteamsteve 

Hi, did the incorrect password issue happen all the time, or randomly?

And did it only happen to the smartphone?

As for the CPU storage, if you refresh the web UI, would the storage reduce to normal, like 20-30%, then reach 100% in a short time?

Can I have a picture of your network topology, such as ISP modem---<cable>-Deco S4----<Wi-Fi>2nd Deco S4---<Wi-Fi> 3rd Deco S4?

Thank you very much.

@TP-Link So I discovered that my phone works near my downstairs S4 extended (that was setup wirelessly, it is not wired yet) and returns "Invalid password" near my primary S4.

Does this help at all? Should I reconfigure my second S4 thing downstairs? The idle CPU load is 56% then it goes up to 100%

My office is upstairs, has a modem, cable to the S4 and from thata cable to a hub that goes to my desktop.    Another S4 downstairs that was hooked up wirelessly.

It happens all the time now, randomly beginning yesterday.

Any ideas?

@weteamsteve 

I wonder if you maybe having two different WiFi networks with same SSID and different passwords. One from Deco mesh, another from elsewhere. Your Main Deco is connected to ISP router which is close to it, right? Is it possible WiFi is enabled on that router?

@Alexandre. 

Yeah it should be.. I mean I was trying to implement a mesh here with this one for upstairs and one for downstairs... The downstairs one isnt plugged into ethernet yet though.

But maybe you're right, maybe I am doing a twin towers attack on myself lol

@weteamsteve 

So I unplugged my second S4 downstairs to test...

and my phone is still getting Incorrect password for "Stevens Network" (my SSID) with the correct password... I've restarted my phone, I've forgot my network and reconnected. Nothing works..

This is annoying and doesn't make sense.. Is there a maximum number of clients I can have or something?

@weteamsteve I rebooted my main S4 and it may work now.