Here is the scenario:
Comcast cable internet, Netgear router WNR3500 v2.
Desktop A (windows 7, 64bits) is wired to router. Laptop B (windows vista 64 bits) is wirelessly connected to router, WDTV live (C) is wirelessly connected to router.
A can see B and C but cannot access them.
B can see A and C but cannot acess them.
C can see both A and B but only can access B, not A.
Anybody can help? Thanks.