When more than one user from the same network, behind the same Nat device tried to log into the remote virtual office, it will kick the other user out.
This is due to the SonicWall not being able to tell the difference between connections as both are coming form the same source IP
Use the SonicWall Netextender to connect, then connect to the internal machine without using bookmarks
TIP: To download and install netextender, please follow:How can I download and install NetExtender for Windows?