I have a AP R320 and try to configure following the Quick setup guide, but in the step 5 when used de web interface (Edge, Mozila, Crome), they do not access to de AP and do not appear the Admin login menu.
Have you tried hard resetting the AP by holding down the reset button for 10 seconds.
Are you configuring it through a connection to the configure-me ssid or are you connected via a lan cable.
I always configure them when connected to the AP with a lan cable as the AP is visible on 192.168.0.1. You need your machine set to 192.168.0.3, with a sub mask of 255.255.255.0 and def gateway of 192.168.0.1. The AP obviously needs a power supply or you can use a poe injector. I find this the failsafe way in case of configuration problems.