Local network not sharing while openvpn

Hello,in my office we had a local internet server and a file server with the ip 's 192.168.2.99 and 192.168.2.1 with mask values for both ip's as 255.255.255.0 . We r using openVPN client for connecting to remote computer.
our VPN ip range is someting like 10.x.x.x. after succesful connection of vpn we r checking the vpn connection by pinging 192.168.1.5. ....8 etc. Our internet and file server is suse linux, and we r using proxy address 192.168.2.99 for our all client windows machines. Using samba in linux we shared the files from file server to all the client windows machines.
Actually the problem is while successful connection of openVPN we are not getting connection to the local server. even proxy or fileserver.Even ping is also failure to both file and internet server.as i said before ,by pinging 192.168.1.5...8 is successful then...
I tried Firewall options, Routing table options etc..
If i set the routing in one client windows machine as below means i can share and ping both local server and vpn remote server-we can work through our process until restart.After restart again the same problem continues.
routing table i set was,
"route -p add 192.168.2.0 255.255.255.0 192.168.2.x 1"
In above ,x is system ip of a client machine.
but again the same problem continues... pl provide a solution for it.
Thanks in advance...