@Solla-topee 

hello! My network is already set under Wpa2+aes but unfortunately I don't know hot to change the router channels. I turned the mesh off and made the Wi-Fi's separate already. Smart device connects to router. I am running an iPhone 13 pro on iOS 15.1. Below is the error I keep getting after the connection on the switch blinks green only for a minute or so then goes back to green/orange rotation. 
 

So I am not sure what happened, but I went to bed last night and woke up and tried to connect it and it worked. I did nothing different so I don't have a real answer if this pops up for anyone else but glad it worked! 

@mascenzi : It is terrible from tp-link software. I did many times this installation and most of the problems are network. If you check everything is fine, but can't connect to wifi that is due to network. There are several issues, in my case, for example the HS200 broadcasting a wifi, but it's IP address is not the same my router ip range. the hs200 ip is alway 192.168.0.xxx, 255.255.255.0; 192.168.0.1; my router is 192.168.68.xxx, 255.255.252.0; 192.168.68.1 Now you can see the difference is 0 and 68; 255 and 252. The easy solution is to change router ip address. I went to router LAN, and change from 192.168.68.xxx to 192.168.0.1. This solveed the problem for HS200, or HS103.... not connecting to wifi. Please take note when you connect to tplink, please try to connect manually your phone to tplink  wifi during processing just to make sure tplink device connected to your phone and it will immediately display your wifi network available for selection.Hope this will be helpful.