I have a Samsung BD-P3600 Blu-Ray with Netflix streaming and Pandora capabilities. I also an Apple TV at the same location.
At my computer (IMac 20") I have an Apple Extreme for wireless streaming, and use it as my router
The problem is that the Blu-Ray will not talk to the Apple...
I am having the exact same problem you are having trying to connect my 3600 to my network. I don't have a wii, but I do have Apple tv & Ipod Touch which connect fine.
PLEASE let me know if you find a solution to this problem. I am nearing my wits end....