@David-TP 

when can change chanell ? 
 

yesterday I do activity laser tag with 30 taggers 

and it's not work . Because other router around . 
 

my event was so bad . 

Hello,
Like many others, I have a smart home and a lot of Wi-Fi devices. I wanted to make everything beautiful and reliable with PUE and power backup. I bought Deco. I didn't want and don't want to reconfigure all my 100500 devices. I wanted to install Deco to use it instead of the old Wi-Fi points. What a disappointment it was when I realized that this wouldn't work. Since you can't select a channel manually, my smart devices won't be able to connect to the new Deco Wi-Fi network even if the network name and password match the old one.
I really regret buying three Deco points. Now for me it's useless garbage.
I hope for your common sense and a firmware update with the manual channel setting function.Hello,
Like many others, I have a smart home and a lot of Wi-Fi devices. I wanted to make everything beautiful and reliable with PUE and power backup. I bought Deco. I didn't want and don't want to reconfigure all my 100500 devices. I wanted to install Deco to use it instead of the old Wi-Fi points. What a disappointment it was when I realized that this wouldn't work. Since you can't select a channel manually, my smart devices won't be able to connect to the new Deco Wi-Fi network even if the network name and password match the old one.
I really regret buying three Deco points. Now for me it's useless garbage.
I hope for your common sense and a firmware update with the manual channel setting function.

  @David-T 

As an electrical engineer working on wireless products in the IoT industry, your explanation is unacceptable. There are many reasons customers may need to set their WiFi channels manually. I can understand making auto selection the default configuration, but preventing the user from overriding this setting is unacceptable. 

I will be returning my system to the store, and will not recommend TP Link to anyone going forward.