Tony wrote WIth the TL-WPA4220 KIT, use the older utility as that will help you log into the device and configure the wireless settings on your computer. Download the Powerline Scan Utility here...

I have a AV500 "kit" (USA V1) which consists of a TL-PA4010 and a TL-WPA4220 wifi extender. I set this up a couple of years ago and somehow managed to change the default SSID. I'm trying to access...