I have a laptop that I added to my domain while attached to the LAN. I then disconnected from the LAN and connected to my wireless network, which is on a different subnet. The wireless router is configured to use the same local DNS server as my LAN domain, and I can ping any of my servers from the laptop by using the NetBIOS name. When I try to ping the laptop from any of my servers using the NetBIOS name, the name is resolved to the correct address but the ping itself is unsuccessful. ICMP-In requests are open on both ends for the domain. Any ideas on why this may be happening??