@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...

@Tonycollinet Hi, It is normal. When there is a new firmware release, it has not been pushed to all the users so that some customers could receive the new firmware notification at the first time,...

@cesnek Hi, Thank you very much for your feedback. Can I have some pictures which showed up the iPhone is connected to the main deco with Ethernet cable? if possible, could you please go to Settings...

@ItsMeDyl94 Thank you very much for your kind feedback. Did all your mobile clients have the same issue? Would any Deco turn red when the internet connection dropped? If possible, could you please...