@David-TP 

Hi David,

First of all thank you for your reply.

1. There is no error message, simply is not connecting. I tried both from ESP Home system configuring directly with the SDD ID and the password in the YAML file and also from the WIFI that the ESP generates if not connected to any network. With that connection it says that the ESP device is connected to 192.168.4.1 while de Deco is in a 192.168.68.X

2. Yes, I tried allowing only a 2.4ghz only, but same issue. When I tried the Guest WiFi I also had both networks (2.4 & 5 enabled).

Before doing all the test I used this other post: https://community.tp-link.com/en/home/forum/topic/520864 to check if it could help and the firrst attemp was made with Security encryption WPA2-PSK [AES] but was not working and then with the WPA2-PSK [AES] + WPA-PSK [TKIP] worked. I then changed the security of the main wifi network to the same (WPA2-PSK [AES] + WPA-PSK [TKIP]) but the devices did not connect.

I can also do a video if necessary.

Thanks again for your help!

Regards,

  @David-TP 

HI David,

Yes I received one or two emails. I was working until now, so I'll check the message in deep and reply to them.

Thanks a lot for your time.

Regards,