Traffic through OpenVPN stopped going on routes, why?

Question

openvpn

All of a sudden today traffic stopped going through OpenVPN, stopped going along routes, routes are issued to clients through the push directive "route xxxx 255.255.255.255", and it used to work fine, today it stopped. The vpn server itself is behind the router.
pastebin.com/AKmvptiV - server config
pastebin.com/wjUwTQmn - client config

Answer 1

After connecting, what are the routes before and after connecting on the server and client?
Client - Windows? Running as administrator?

Answer 2

Solved the problem by writing masquerading:
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE