@ARGamingPK1 Hi, thanks for posting question here. May I confirm whether the problem happens on each device that you took connection preferences? And does it happen on each client device? And when...

@daweeze Hi, thanks for posting question here. I am afraid the problem seems strange and messy. Here are the suggestions for your reference: 1. Take factory reset on all Decos. 2. Uninstall Deco app...

@goswamiuday Hi, welcome to our community. Was there any power outage or instability during the firmware upgrade? Now what is the LED status on each Deco? It is suggested to unplug the power adapters...

@Bideroo Hi, thank you for posting on the TP-Link community, and we certainly appreciate all your feedback and feature request here. While we don't have any specific details whether this feature can...

@DaveSpijker1973 Hi, welcome to our community. If the hardware version of your Deco M9 Plus is V2.2 or V2, it is suggested to check whether the solution in the thread is suitable for your...

@Sergeydev86 Hi, you may refer to our answer in another thread you posted. Thank you and best regards.