The simplest way to determine if you have basic VPN connectivity is to ping a computer on the network you have connected to. Please follow the following steps to perform this test:
1) Take note of the IP address the device reports upon successful start-up. This is the address that you had to point your web browser to when you activated the device.
2) From somewhere other than where you are running the VPN device, connect a machine to the VPN.
3) On the machine you just connected in step 2, open the Windows Command Prompt:
In Windows XP you can do this by clicking the Start Button, then click 'Run' and type "cmd" (without the quotes) and press ENTER.
In Vista click the Start button, then type "cmd" (without the quotes) into the search bar and press ENTER.
You will be presented with a black window with light text and a flashing cursor that looks something like "C:\Documents and Settings\yourname>".
3) Now type "ping ip_address_from_step_1". Replace ip_address_from_step_1 with the address you took down in step 1 above. For example: ping 192.168.11.54
4) You should get a response from the device that looks like this. If you get this response, that means your VPN is working and you are able to reach the remote network.
C:\Documents and Settings\yourname>ping 192.168.2.1
Pinging 192.168.2.1 with 32 bytes of data:
Reply from 192.168.2.1: bytes=32 time=2ms TTL=64
Reply from 192.168.2.1: bytes=32 time=1ms TTL=64
Reply from 192.168.2.1: bytes=32 time=1ms TTL=64
Reply from 192.168.2.1: bytes=32 time=1ms TTL=64
Ping statistics for 192.168.2.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms