I haven't found dealing with D-Link support to be very illuminating or useful. The one time that I did try to talk to them, they wasted a lot of my time, which I'm not eager to repeat. However, a certain number of people test their router to see if it is vulnerable using the reaver program. That's what I was trying to find out, if anyone who reads this forum has done this, and what the results were.
My Linksys E4200 was tested by several people and failed. As a result, I switched it to tomato open source firmware, and it's doing fine. As there is no open source firmware for this router, which I use as an AP, I thought I'd ask. Yes, D-Link will have to fix this if the router turns out to be vulnerable.