I setup Microsoft VPN server with 10 ports. But I only able to logon with 2 simultaneous connection. If the 3nd person try to logon the server will time out with error 678. I am running out of knowledge where to troubleshooting the problem. Please help me if I left out something or need to change anything. It used to worked fine before, there are many time that I seen more than 3 simultaneous connection. Now it only can accepted 2 simultaneous connection. Please help.