@Ke1ghl3a Hi, if the LED is flashing blue, Deco X20 is still in setup mode. Have you tried to set it up again on the Deco App>"+" on the top right>Create a Network? Would there be any error message...

update: Please refer to the recommended solution here: https://community.tp-link.com/en/home/forum/topic/843896 Best regards.

@Flotschn Hi, would there be any error message on the Deco App when "the Deco can no longer be accessed via the App"? When Deco X50-5G is in Bridge mode, its WiFi is reserved for App management and...

@DaanB Hi, welcome to the community. Did the old "main Deco" work well serving as the satellite Mesh? It was hard to say what had caused the network failure for now. Maybe a bad physical Ethernet...

@dpant Hi, thank you for sharing your experience with Deco Mesh, and I sincerely apologize for the inconvenience caused by the connectivity challenges and management limitations. I fully understand...

@Wagdi Hi, have you run a speedtest on the device directly via speedtest.net, for example? From the previous relevant feedback, I find the speed rate meter on the Deco App is usually confusing. Wait...