Do you know what your wireless settings on the router are? If the router is set up for what they call "Pure Hi-Throughput or Garfield mode with encryption, the connection will not take place.
So, let's back up a little. Make sure that your SWC (Samsung Wireless Connection) setting is set to off.
And I apologize if you've already done this, but it's the easiest way to configure it. Put you access point and Samsung TV next to each other (no more than 9 inches between the AP and the samsung wireless). Then turn them on and wait at least 2 minutes. After the two minutes, then plug the adapter into the television.
As soon as the connection is established, place the AP parallel to the Samsung Wireless Adapter and within 9 inches of it.
If this reports a successful setup, then you can put the AP in it's place and you will be all set. It's kind of weird, but it does work - sometimes.
If you do that, or already have and it didn't work, we can move on to other steps.