@MeshTNN Deco mesh runs its own WiFi network, independently from ISP router. When you powered on Deco mesh it started with its "old" configuration settings, which include SSID and password. Because...

@Andrewdj Thanks. Based on Internet description, "huawei echolife EG8145V5" is modem/router. It should have four yellow Ethernet ports. Ethernet cable from Main Deco is plugged to one of these yellow...

@fabriciofdms Another option is to enable Guest Network in Deco app, you can run it without password.

@Andrewdj Please give me ISP modem brand and model number. That will help me to figure what you have. Connecting switch to ISP modem and all Deco to switch will substantially offload Main Deco, but...

@Andrewdj Based on Deco map, you have M5 and also some other Deco model: is it M4? Also, do you have ISP router in front of Main Deco or just modem?

@tphoney You can login directly to Satellite Deco study_room and do upgrade for that Deco only. Use study_room Satellite Deco IP address to login to it, same way you login to Main Deco, same...