I have a laptop setup with 2 static IP addresses so that it can have connectivity in two different VLANs setup in my network. The laptop will auto-sense the correct IP address and gateway when moving from one VLAN to the other, but on the second address, I cannot connect to any UNC paths. Everything else works fine such as pinging by IP, pinging by hostname, loading web pages, and using Outlook to connect to our Exchange server. If I change the IP address order under TCP/IP properties so that the first IP is the one belonging to the currently connected VLAN, UNC paths once again work fine. This only happens when the laptop falls back to the secondary IP address. Where should I begin to look?