@BigPaul Hello, what is the current network diagram? How do you connect these devices together? What is the operation mode of the Archer C4000? Is it regular router mode or access point mode?...

@User0001 Hello, is there any specific symptom of the auto-reboot issue? Like the led status of TL-WR940N. Do you have the same issue with the original power adapter? Try to use a different socket to...

@AnthonyFister Hello, option 1, you can use Archer A7 as the main router to enjoy the USB sharing function and the LAN ports, the Deco will work as an access point to boost the mesh network. But...

@sudipBiswas Hello, may I know what is the model number of your device? Is that Archer AX3000 or Archer AX50? Who is your ISP and what is the bandwidth you paid？ What is the speed you can get from...

@MaryLucas Hello, what is the model number of your device? As for the signal range, you can read this article to get more information. https://www.tp-link.com/support/faq/2291/ May it help.

@Vittorrio You are welcome; Yes, the main Deco need connect to the modem/internet source by wired cable. And the Deco units can connect to each other by wired cable or wireless; if you want to use...