Hi there, tried searching but didn't find an answer to this specific problem; here it goes, hope somebody can help: We are using a Mac Mini with OSX Mountain Lion Server 10.7.4 in an Office setup. Almost all clients are Windows 7. We have set up client configs, and it works; both L2TP as PPTP. My problem is multiple VPN connections from Windows clients are not allowed. When user1 is using VPN from his Windows client, no other VPN connection from a Windows client is allowed while connections from an Mac or iPad works like a charm. If user1 disconnects vpn another Windows client is allowed. All users are using L2TP. I have enabled PPTP for testing purposes. VPN address pool is 20 adresses for max 4 VPN users. Is there a explenation/solution?