@Fco_Est Hi, welcome to the community. Deco does not support changing wireless channel yet. For the current issue, it is suggested to refer to the following link: Fix unstable connection when...

@Etunesi01 Hi, welcome to the community. After replacing the new modem, if the internet connection type remained the same(Dynamic IP or PPPoE) Deco M5 would be plug and play and there is no need to...

@MikeAlex65 Hi, welcome to the community. Have you tried to power off this M9 plus for about 10s, then hold the reset pinhole for 1s again and check whether it could turn flashing blue? If it was...

@MikeAlex65 Hi, welcome to the community. V2.6 and V2.8 shared the same firmware as V2. So you could use the firmware here: Deco M9 Plus(US)_V2_1.6.1 Build 20230403 Best regards.

@Hectorgzz Hi, welcome to the community. the following link might provide some useful details for you: General questions about Ethernet Backhaul feature on your Deco Best regards.

@Julio_7 Hi, welcome to the community. Here are some suggestions for your reference: 1. change the DNS server under IPV4 to 8.8.8.8/8.8.4.4---How to change DNS server settings on my Deco 2. Disable...