Local Network after VPN / RDP can’t ping or connect to servers

Scenario:
A local home lan has 192.168.1.x for ip’s. A wyse smart terminal with empedded xp seems to vpn and rdp into a terminal server just fine. The user would like a Apple Mac mini to use. The Mac vpn connects but the RDP doesn’t, nor can I ping any servers on the remote site. The only thing I see that may cause the problem is the local lan is 192.168.1.x and the remote vpn site ip’s are 192.168.1.x.
There’s an option on the Mac nic properties to send traffic to vpn. That doesn’t appear to work.

I’d like the apple mac to work. I don’t understand why it won’t when the Wyse Smart Terminal does work?

Any Help Is Appreciated,

DJ