@Carl You need to connect directly to the unit via an RJ45 cable (NIC cable). Log in to the device and go into the settings. It is here you will do most of the work directly, NOT in the TP-Link...

I have one also and same issue. What I did was go through the setup process and connected to my network. Then, I plugged the extender into my computer via lan cable after all lights were blue. I...