So the access control feature doesn't work unless you are a SecureSpot subscriber. Chalk up another failure attributed to SecureSpot! 
Not exactly the feature works without SecureSpot but it's somehow linked to SecureSpot. If you've never subscribed or tried SecureSpot then you should have no problems. I have Dir-655 at work and I never tried or subscribed to BSecure on that Router and I have no problem using Access Control features with that router. On the other hand I paid for 1 year subscription to BSecure on my home router then I let the subscription run out because of issues I have with the service it doesn't work to my satisfaction and caused problems. Interestingly computers that I had when I subscribed to secure spot get message in address bar something about unpaid subscription and computer I purchased after the subscription run out I get a message that it's not registered. It comes across as an extortion tactic obviously BSecure is keeping track of private MAC addresses which I find disturbing for a non subscriber even when the service is turned off.
Now my web access is not blocked off all the time, it is sporadic, it happened last Friday and Saturday and this Friday again. This time I called D-Link, the procedure step one was to set check mark for BSecure ON then save it, then check it off and save it again, then go and turn off Access Control and save it after that my web access came back on. This is a serious flaw. I was told afterwards that I can turn the Access Control Back on if I use it (and I do) and that it should work, but for how long? These blockages are sporadic and they shouldn't occur at all! Don't tell me that I have to go through this hassle every time I get blocked off. What if I am not at home? Others using web wouldn't know what to do, they would have to wait until I get back to gain access to the web.
For one thing I do not like the fact that some 3rd party company that I do not want to have anything to do with can disable functionality of my Router without my consent and tracks MAC and IP addresses of devices on my private network this is very serious.
I really lost it when I spoke with the tech support about this over the phone that's the only thing I feel really bad about because this issue is not his fault but it's D-Links problem and they should've been on top of it right from beginning, this is ruing their reputation.