And? Please be honest, will the firmware come or not? It's been almost a year.  

@Tummie555 

Hi, the latest firmware has added network optimization to improve the current wireless condition;

And we did not have a plan to allow manually selecting the wireless channels for Deco products;

the detailed reasons have been stated here:

https://community.tp-link.com/en/home/forum/topic/210022?replyId=465338 

Thank you very much.

@TP-Link Okay, thanks for the clear and honest reply.

I maybe misunderstood this tp-link-support answer in this thread: "We have already noted all of your requests about choosing the wireless channels manually on the Deco system and they have been forwarded to the developers, they will publish new official firmware in the near future, not too long to wait"

I am struggling with this too. Deco has dropped my wifi from band 11 to band 1..  probably because fewer local wifi nets are on lower channels... However I know my old kitchen microwave causes interference on band 1... so now everything dies or bandwidth becomes unusable when food is being cooked... Sarcastically though - Thanks tp-link for deciding what is best for me..PS.. My whole home tech setup is built on tp-link products & this failure of the Deco software is MY BIGGEST ANNOYANCE. Even the cheapest basic routers have had the ability to manually select wifi settings since the dawn of time 😱... Come on tp-link help your loyal intelligent customers please .. 

@TP-Link_Deco at least allow us to limit the channels it picks. I'm in the EU area so 1 to 13 is available, however my Ring doorbell only works with channels 1 to 11. The network optimisation keeps picking channel 13, which means my doorbell is unable to connect to my WiFi at all.

I've ended up using an old access point just to work with the doorbell, but this defeats one reason why I decided to go mesh.