QUOTE(PJng @ Oct 23 2023, 01:03 AM)
i got try set same SSID, but seem sometime phone does not auto switch, and i cannot know which router is connected to, so i just add extra 1 number on SSID, easy to see connected to which router.
and some more AP also got LAN port for PC use
True also. Even with mesh systems, - more accurately 802.11[r,k,v]. WiFi Mesh nowadays is more a marketing term - ultimately it's still up to the device whether it wants to switch or not.
For sure your house will have spots where the signal is the same but one AP is faster than the other. And dunno why the phone always connects to the one that is slower.

My master toilet is one such place. No matter what I'm using, Deco M4, M9 Plus, X20, Mikrotik hAP ac, ac2, ax3 and now DLink X3060Z, the same thing happens.
Another one is the camera in my front door, for some strange reason, it always connect to the AP at the back of the house instead of the one 10ft away from it.

This can be solved by using separate SSIDs like what you do. Since I prefer a single SSID, I solve this by blocking that camera from the back AP but I can only do this when using Mikrotik APs.
Another thing is power, I never use 100%. Too much overlap in the signal. TPLink Deco team knows this so their products all have conservative power settings. Buy more Decos instead of increasing power.
This post has been edited by soonwai: Oct 23 2023, 03:11 PM