@dooncomputer You can downgrade to previous firmware 1.2.11 by using Web UI manually.

@Jay_B You can do the factory reset to all Deco units manually by using reset button and then create new TP-LINK account and then do the setup on new TP-LINK account and then u will able to access...

@Jay_B You can change ip address on your Deco system and the whole deco system will automatically follow the changes.

@Jay_B Go to LAN settings and change the ip address to 192.168.68.1 and also change the subnet mask to 255.255.255.0 and then reboot your Deco system.

@David-TP Yeah i do Reboot Schedule everyday and i can't connect 3 decos but 3 is not suitable for my house

@Subhrajit_P You can download the latest firmware from the link below. The latest firmware is 1.3.0 https://www.tp-link.com/en/support/download/deco-x60/v4.6/#Firmware