@Mai76 Hi, may I know the model number of your TP-Link router? And who is your internet service provider? Could you please more details about your current issue so that we can locate the problem as...

@onvacation Hi, Have you checked whether both wireless and Ethernet connections have the same unstable issue? Would there be any error message on the advanced>status page, such as' please configure...

@User2323 Hi, May I know who is your internet service provider? And when the internet dropped, would the DSL light and internet light turn off? By the way, may I know how long have you had the modem...

@Farhad.. Hi, I am afraid that the hardware version V4 could not be flashed back to V3 since it might break the router. Thank you.

@MoodyB Hi, thanks a lot for all your reply. We have forwarded your cases to the local support team and later they would contact you via email to deal with this issue properly; Thank you very much.

@awalton Hi, there is a new firmware for Deco M5, and could you please try to update the firmware to the latest first: Deco M5(US)_V3_1.5.3_20210203...