... The data of my VPN9C Configuration are: Gateway: My.Dyndnsadress Group name: N9@nokia.de Group Pwd: keykeykey Username: nokia@N9.de Password: secret Domain: Dyndnsadress When I try to connect I get back. "vpnc: response was invalid [2]: (ISAKMP_N_....)" On the server GUI I can see at the same time: "vpn N9: connecting N9@nokia.de" Can someone help to find and eventually correct the error(s) of my configuration? I would really be VERY grateful! A VPN connection to the same server with a Symbian NOKIA (701) works perfect - the 701 vpn client was configured with NOKIA's Mobile VPN Client Tool