cant add new Host

[pweihao]

i config my ut as server, and have few user to connect the server 2008.
and now i would like to and new host but cant. why.
Validation Failed:
the two networks .......... cannot overlap.

[WebFooL]

Hi Pweihao,

We need more information to help you.
What is your internal IP range.
What is your VPN address pool.
What Client/Host are you trying to add?

[pweihao]

address pool : 172.16.0.0 netmask 255.255.255.0
host 192.168.***.*** net mask 255.255.0.0