@NCW18 Hi, I see the Deco M4 is online under your TP-Link ID so I guess you have fixed this issue already? If yes, would you mind sharing with us how? Thank you very much.

@Pleysje Hi, Thank you very much for the feedback. I would like to forward your case to the senior engineers and please check the email for further assistance.

@CarlN Thank you and I have updated the recommended solution. Could you please try to install the beta firmware there to see whether it is working or not?

@garyng Hi, I do see some similar feedback. May I know how long have you had Deco M4? If it is only this unit that lost 2.4ghz, would you swap the location of this unit with one of other satellite...

@SM-xgrm Hi, may I know who is your internet service provider? And what is the model number of your main router? Later I would like to follow up on your case by email and please check whether you...

@SiegM Hi, for Deco products, the online firmware upgrade is released from the cloud server, and the remote control via Deco APP is also based on the cloud server. If you see the error message"...