I use OpenVPN with firmware tomato-K26-1.27.9047MIPSR2-beta16-vpn3.6 and everything is working properly. After upgrade to version tomato-K26-1.28.9048MIPSR2-beta18-vpn3.6 the OpenVPN not working. He tries to connect but does not end the authorization process. After several attempts, switching on and off the OpenVPN server the WAN port stop working i reboot is needed. I use Linksys WRT320N.