@w3by Please ensure that you have connected your device to the Deco M4, and confirm that it has obtained valid IP address and gateway from it. Try to follow this FAQ to login to the web UI with the...

@3aZy Hello, for your information, the Deco does not support this feature to change the hostname of it. While you can choose or customize the location to install it. Best regards.

@Kelvin_Ng Hello, please connect the slave Deco to the main Deco by wired cable to update the firmware. And you can login to the web UI of the Deco M9 plus and go to system tools-firmware upgrade...

@Kelvin_Ng Hello, you can use up to ten Decos in the same network. You can read this FAQ. https://www.tp-link.com/support/faq/1588/ Good day.

@Charlize Actually, both have their own disadvantages. The TL-WPA4230Pkit is AV500, while the TL-WPA8630Pkit is AV1300. With them used together, the powerline speed between the AV500 and AV1300 will...

@jasonbraganza You are welcome, it is glad to help. Please take your time to find the driver online. If need more help, be free to let us know.