@alfarme Thanks for your valued reply. We at TP-Link have been aware of the vulnerability and our team is still investigating whether any of tp-link routers are affected. If there is any information...

@Tonybell What is the current network diagram? How do you connect these devices to each other? Try to connect the CCTV and DVR to the Archer AX6000 directly, bypass the netgear switch and verify...

@jslone Hello, please check my answer which has been tagged as best solution, I added the download link. May it help.

@fGrisi Hello, have you ever tried to change another ethernet cable or swap the location of Decos? Or you can switch the slave Deco to Main Deco and then test the speed you can get from Deco...

@Big_Tummy You are welcome, it is glad to help you. If need more help, be free to let us know. Good day.

@Oakmeister For your information, at least a wireless router and a network expansion device ( like range extender) are needed to create the Onemesh network, and the Onemesh supports wireless backhaul...