@pasaico Hi, welcome to the community. It is expected that devices from Deco X50-Outdoor can access the admin page of Router H388x and RE450 considering they are all in the same IP segment as the WAN...

@Charlie_Rendon Hi, welcome to the community. Are the Deco units directly connected via an Ethernet cable, without any network switch? "ISP Router >> Main Deco >> (Ethernet) Satellite 1 >> (Ethernet)...

@Wooca @Invi @soun50fr Update: A new 1.6.4 is ready to fix this issue. It is recommended to install the 1.6.4 version here first: Deco X50_V1_1.6.4 Boosted Network Stability for Smart Home Devices...

@Sami21 Hi, welcome to the community, and Happy New Year! Have you made any changes to the router recently, such as using a new 5G SIM card? Would the internet LED turn red during the disconnection?...

@YehBuGu Happy New Year and welcome to the community. Did the reported issue start recently? Could you please refer to this link to help me submit the Deco APP log: How to submit Deco APP log Wait...

@Syamil_AVG Hi, Thanks for the update. Is your Deco model Deco X50-5G? Would updating to the latest 1.2.1 version help with the reported issue?