Issue
When you use Mobile VPN with IPSec with any supported VPN client, the Firebox assigns the DNS settings configured in the Firebox network configuration, but does not assign the DNS Suffix.A client without a DNS Suffix assigned must use the entire DNS name to resolve any address. For example, if your terminal server has a DNS name of RDP.example.net, a user cannot type the address RDP in order to connect with their terminal server client. The client must also type the DNS suffix example.net.
Workaround/Solution
Add the DNS suffix to the Mobile VPN with IPSec client configuration, or to the Network Adapter settings for your computer.For information about how to configure DNS settings in the WatchGuard IPSec Mobile VPN client, see:Configure DNS in the WatchGuard Mobile VPN IPSec VPN client