@JymCaniedo It's under "More" tab> "WiFi access control" If you're referring to access the web UI through PC, go to 192.168.68.1 or tplinkdeco.net What's your hardware version btw?

@DanielBG Oh yeah, I forgot: The "WPA2" option for M4 is WPA2-PSK. No need for changing anything. "Still weird that an update can just break working device in such a way" Is this your first time...

@Raymond175 Which gen Chromecast is it? You need to be on the same Wi-Fi network for casting using Chromecast. The latest firmware version for M4 V4 is 1.1.2, for V3 it's 1.6.1. You still haven't...

@DanielBG That sounds more like a "Xiaomi" issue. I have a Chromecast with Google TV 4K & a Onn 4K box 2023 (both running on Android TV OS). Neither of them has any issues. If that Xiaomi TV is...

@David-TP Finally updated from the EN website (was a bit skeptical at first) but all is good. Under "More" tab> advanced, it now shows 2 more options ("WAN Port" & "Static Routing") @yasart What's...

@Raymond175 Is there a particular reason for 2 of the M4s being wired & the other two not wired? What's the hardware version of the M4s? "the Decos haven't received firmware upgrades for a long time"...