@10US Terribly sorry for that, I have updated it successfully this time):

@Cretu Thanks so much for your info. Sorry that you may need to plug it into the Deco with a cable or change the security back to the mixed WPA2-PSK (AES)+WPA-PSK (TKIP). Cretu wrote @TP-Link_Deco...

@Gekke-Gerrit Hello, do you mean Deco M4R? You can install the beta firmware for the Deco M4, they are the same: https://community.tp-link.com/en/home/forum/topic/227662 Thanks.

@crayuk @timp78 Just updated for Deco P9, please check again: https://community.tp-link.com/en/home/forum/topic/227662 Good days.

@timp78 Thanks for your reminding, just updated.

@CrisN Hello, We have released the beta firmware for the Deco device to allow you to change the security type now, please refer to the below post for more details:...