@Jimmy1 Hello, For the power-line adapters, normally, it would be sold by the kit(2-pack). And we do have the following models sold individually in some area: TL-WPA4220+TL-WPA8630P; So you could...

@BaasB. Good day, I think it might be because the DHCP on the AV600 was not automatically turn off when it is successfully linked to the router； Could you please help me check the following...

@Freshby69 Good day, For your case, could you please help us check the following information: When it has been moved upstairs, was the power-line light off? Are there any High power appliances...

@dmn1981 Good day, For your case, could you please help us check the following information: For the 6 Powerline Adapters, 4 x AV500 Nano and 2 x AV600's, are they 2*TP-PA4010KIT, and 1*TL-WPA4220kit？...

@HuskyLogic Good day, Please have a look at this link: How many Powerline adapters can be added to the same network for different models: https://www.tp-link.com/support/faq/434/ Thank you~

@Lizzie75 Good day! Is the AV600 you have TL-WPA4220kit? For the wireless network name, if you did not press the Wi-Fi-clone button on the Wi-Fi extender, it would still keep the default TP-LINK...