@DaveC123 The Deco M9 two-pack, can give up to 4500 sq. ft. and the Deco M5 can give up to 3800 sq. ft. The M9 does have the wireless backhaul, but it would only be between the M9 nodes, not the M5s....

@Robbbb Go to Parental Controls > Select the profile desired > Select the blue link under Time Controls > Disable the ticker for both weekdays and weekends. That will remove any time access...

@Kasa_Soze In the process you mentioned is the timer icon disappearing or is the action of the timer canceled as if you never set a timer?

@Sangria The adapter should be plug-in play, but since you are having issues, install this driver from the chipset maker: https://www.tp-link.com/us/support/download/ue300/#Driver

@jettamesis If your wireless password has special characters, try and change it to have letters and numbers to see if you still get the errors. You will need to forget the wireless network as it will...

@KernowLad The solution to the other thread mentioned was a faulty Ethernet cable. To see if that may be for you as well, disconnect any wired LAN connection to the router, only have Wi-Fi...