Having a ton of issues on this myself. Got this in May 2025.
Worked great until Dec 2025. Since the start of this year its just plain chaos with smart home devices, specifically those running on 2.4 GHZ.
Regular devices like computers, phone and streaming devices work fine.

Smart home devices just connect and drop off extremely randomly. 

Will note that TPLink smart home devices (wall switches) never seem to drop off. But almost everything else does.
I have an array of devices (Nest, Govee, Meross etc) and they all randomly go in and out causing a lot of automations to fail at random times.

Extremely frustrating and I have tried every version of the firmware including beta versions with no solution.

At my wits end where im debating just junking this system but the only reason I am not is due to the having the resetup the entire wifi network up again.

  @sandyjb83 If you have the BE63 then you should look at pasting in your comment from here there

https://community.tp-link.com/us/home/forum/topic/863780

  @sandyjb83 I've noticed that a bunch of my IOT devices (DirecTV, Google Home. Nooie cameras) would drop off.  

I solved my issues doing this...

Left the main network as is with 2.4/5/6 all active.This is where most devices connect.

For the troublemakers....

Set up a guest network with just 5 for devices like DirectTV & Google Home.  Devices where speed actally matters.

On the IOT network, it is just 2.4 for doorbells, cameras, etc

And I disabled MLO

I don't think the router is the issue.  It is my old, cheap devices.

Did this a year ago.  Rock solid since.

  @BradLouKy 

Thanks for the info.
The Iot network has always been super buggy and I had disabled it.
What I had done was have a main network where all priority devices connect (this works great, no issues, running on MLO)

I created a second network (which is actually a guest network) and used this for Iot. I have tried to run this one both 2.4 and 5, and 2.4 only (6 is off). As I mentioned, this was also working great until Dec, zero issues. The devices in question are all 2.4 GHZ devices (smart plugs, smart lamps, garage door controller, smart lights, smart blinds and Nest smoke detectors). Note that smart switches which are TPlink branded have no issues here.

  @Crua9 thank you for the link to that, I will try it today

  @sandyjb83 One thing about the  Nest Protects is they need IPV6 enabled to stay connected.  My 6 have stayed online over a year after switching it on.

  @Ryan is this in production?

my router was set to auto update and I got this version instead of a prod build.  It hasn't been working for me at all and I'm trying to downgrade. My internet is basically non-existent with this version of firmware. 

I hope it is because I don't remember signing up for beta testing when I enabled auto updates. I just emailed support but I'm basically dead in the water right now. 

  @Ryan Deco BE63 2.6