@TP-Link 

Thanks for getting back to me. I figured out the actual issue I am having. It looks it is not with Network Optimization on my DECO. Looks I have set data limits expecting to be applied in different way than intended. 

After removing those limits completely everything working as expected. 

  @David-TP 

same issue - 6 x M5

i posted about this and it's not appearing here. Was my post deleted ?

why isn't there an official release to resolve? This is ongoing for nearly two years

i would like to return my m5s and change to Eero mesh , this isn't accept

  @David-TP 

  @TP-Link 

1. The model of the Deco device
M9 Plus
2. The number of the Deco nodes
3
3. The number of connected client devices
17 devices
4. Detailed issue description

Recently, about two or three weeks ago I upgraded to 1 gig home internet. I had to switch my router for the new service and that is when the problem started. I have the same internet provider, just upgraded the speeds. I have 2 networks as it is easier to manage priority devices and smart home devices on separate networks. I already had 2 separate networks before upgrading my internet and that was working perfectly fine without issues. When the new router was installed, the Deco mesh system just needed a reboot and it started working again. However, a couple of days after the devices connected to the Deco system started misbehaving so I decided to look at the app. Basically to fix the issues of devices disconnecting or being "connected to the network without internet" I had to reboot all 3 of my Deco devices and then do a network optimization inside the app 2-3 times a day. I tried to reset the Deco devices and recreate my network but the problem still persists. I turned off Fast Roaming and Beam roaming without having any effect on the issue. I can't find any other helpful resources.

  @TP-Link Can I use the M4 beta firmware for Deco M4R? 

I'm having similar problems: 

- Areas in the house recently having dropped/slow connections whereas up til about 3 months ago, there were no such issues in the area. 

- Connection will be reset and stable once i perform a Network Optimisation 

- This can happen at least 4-5 times in the span of 2-3 hours

*Connection is fine when tested on phone wifi near the deco unit. 
**There has been no change in the setup of the wifi before this issue started

Would the beta firmware update solve the issue? 

  @TP-Link 

Please implement the automatic 'Network Optimisation'. 

You have already implemented automatic 'Reboot'

The reason this is so important to everyone who owns a Deco is a lot of people live around heavily congested areas, like apartment blocks. Manual optimization just isn't good enough and certain devices 'drop off' the network

I recently got a XE200 and its wonderful but there are about 30+ networks around me and the app keeps telling me that all 3 bands are heavily congested

PLEASE accept this request, most other brands do network optimization on the 'backend' without it even being a feature, automatic detection of congestion is done in real-time and fixed in real time. How is it Netgear, Ubiquiti, Asus & D-Link already have this feature and you don't?

Why would someone spend almost $3000 on a BE900 and find out that the network optimization is just not there?

  @I912900K 

Deco X10

One satellite connected via Ethernet has frequently  reduced bandwidth. Once optimized, the speed goes back to normal. Needs to be done daily. Please advise