I have a Linksys wireless router that has my NAS plugged into it. I just purchased a WD Live TV media player and it doesn't see my NAS.
It sees my pc that is also plugged into the router and I can view shares on my pc from the WD but not my NAS. The NAS connected to the wireless network without any issues.
Also all my other laptops etc can see the NAS on the wireless network but the WD doesn't see it.