I'd begin debugging by doing:
(This is probably your problem)
On both networks and making sure you have a route to the SwServer. You are probably on a different IP address range while connected to the VPN and have a different route or no route at all.
You might be able to add a route to SwServer by doing:
route ADD [network] MASK [mask] [gateway]
Keep in mind it could also be a firewall rule on the company network so you may want to get the Systems Administrator involved.
Some additional thoughts:
Make sure the NETBIOS name 'SwServer' resolves to an IP by doing:
If SwServer resolves to an IP address... try manually mapping the drive:
net use N: \\SwServer\Development
charlieg wrote:The odd thing is that I can go a week and things will work flawlessly, then it all comes off the rails....
Many Systems Admins sit in their office and poke buttons and change network security/patch things every day while consuming large amounts of coffee. It's a repeating pattern of fixing 90% of everything and breaking the other 10% of users. Rise and repeat.