This article provides troubleshooting steps if you are unable to map a network drive or browse "My Network Places (Network Neighborhood)" over the SonicWall global VPN client (GVC) connection.
IPsec does not encapsulate NetBIOS broadcast traffic, unless the IP Helper facility of SonicOS Enhanced is used to explicitly direct these broadcasts to a particular zone. We recommend enabling WINS and specifying WINS servers in the DHCP scope when mapping a drive, otherwise use of the fully qualified domain name (FQDN) may be required when browsing or mapping by name on the network. Consider the following troubleshooting areas:
Issue the net use command from a Windows command prompt for the shared drive you are trying to access. Example: net use z: \klhbackpack
Double-click on Network Neighborhood or My Network Places. Determine if all network resources and PCs are shown.
Verify that the PC running the VPN Client gets the correct WINS and DNS information:
Select Start | Run and type ipconfig /all.
Check event logs and debugs to see the WINS and DNS information passed down from the headend device to the VPN client.