Well, I have one of these beasts and after some tinkering and the occasional hair pulling I have found the following:
The slowness and impossible-to-work-with problems with the web-based administration interface of the WNDAP360 are only experienced when you access the web interface through the wired network interface of the access point, not when you are connected to one of the wireless network that the access point provides.
Example:
1) I connect my web client (computer) to the default "Netgear_11NG" wireless network that the access point provides (or to whatever network that you have configured on the access point).
2) Connect to the AP's web interface using your web browser. The web interface is responsive regardless of if you are running the AP on the default settings or if you have configured it previously.
3) Disconnect your computer from the wireless network of the WNDAP360 AP and connect it either to another wireless network at your site or to your wired network. The main part is that you have access the AP web interface not using one of the AP's own wireless networks.
4) Connect to the AP's web interface again. It is now extremely sluggish and often doesn't load at all.
I have experienced this behaviour both with the current firmware version 2.1.5 and previous versions. I have tested the scenarios from three different clients of varying types, such as Windows 7 and Mac OS X, with several different web browsers.
The performance of the AP is good in my experience, I can fully utilize the 100 Mbit/s connection to which the AP is connected, but the problems with the web interface casts some doubts on the quality of the product.
