Thanks for replying jimasek. I believe it is the network name as I am sure it isnt the SSID. To explain more, when I look at "connected devices" on the main AP it just shows the repeaters as...

Model : Hardware Version : Firmware Version : ISP : Hello, I am using 3 TL-WA901ND's in repeater mode in a large warehouse. They all have a device name of TL-WA901ND which I would like to change to...