@Sergio18 Hi, could you please provide more info,such as screen shot and the error message. you can refer to ( https://www.tp-link.com/support/faq/1373/ )

@ellymoo Hi,Sonos devices can communicate with each other through Sonosnet,you could try speaker 1 connects to the plusnet router, and then 2+3+4 pair to 1. you can refer to this...

@JaeT does it work after reset

@Mariomark1541 it is possible,but you should disable mesh feature in web interface then connect to the specific AP

@JaeT Hi, whether you have enabled the mesh function, if it is enabled, the SSID and password of the extended network will be consistent with the main router, if it is not enabled, the SSID and...

@Mariomark1541 Hi, Deco X50-poe supports router mode and AP mode both,you can set them as AP mode