I am sorry to bore you with yet another connectivity problem, but i am really in a twist here. The tunnel has worked, and stopped working, without any appearant reason. I tried resetting the adapter and re-configuring it whithout success. Does anyone have any ideas? The setup is as follows: ping towards tunnel:2 works fine, but tunnel:1 is not. netsh interface ipv6>show int 13 Interface SixXS_HGV10 Parameters ---------------------------------------------- IfLuid : tunnel_4 IfIndex : 13 State : connected Metric : 25 Link MTU : 1280 bytes Reachable Time : 39500 ms Base Reachable Time : 30000 ms Retransmission Interval : 1000 ms DAD Transmits : 1 Site Prefix Length : 64 Site Id : 1 Forwarding : enabled Advertising : disabled Neighbor Discovery : disabled Neighbor Unreachability Detection : disabled Router Discovery : disabled Managed Address Configuration : disabled Other Stateful Configuration : disabled Weak Host Sends : disabled Weak Host Receives : disabled Use Automatic Metric : enabled Ignore Default Routes : disabled Advertised Router Lifetime : 1800 seconds Advertise Default Route : disabled Current Hop Limit : 0 Force ARPND Wake up patterns : disabled Directed MAC Wake up patterns : disabled Link-Layer Address : 81.191.65.78 Remote Link-Layer Address : 83.140.3.18 Tunnel adapter SixXS_HGV10: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Direct Point-to-point Adapater Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:16d8:ee00:14a::2(Preferred) Link-local IPv6 Address . . . . . : fe80::3d09:6fcc:991b:3661%13(Preferred) Default Gateway . . . . . . . . . : :: NetBIOS over Tcpip. . . . . . . . : Disabled IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 13 281 ::/0 On-link 1 306 ::1/128 On-link 13 281 2001:16d8:ee00:14a::/64 On-link 13 281 2001:16d8:ee00:14a::2/128 On-link 24 306 2001:16d8:eeb3:1::/64 On-link 11 266 2001:16d8:eeb3:1::/64 On-link 24 306 2001:16d8:eeb3:1::/128 On-link 11 266 2001:16d8:eeb3:1::1/128 On-link 24 306 2001:16d8:eeb3:1:a810:e3b5:293a:f198/128 On-link 12 276 fe80::/64 On-link 24 306 fe80::/64 On-link 13 281 fe80::/64 On-link 11 266 fe80::/64 On-link 13 281 fe80::3d09:6fcc:991b:3661/128 On-link 11 266 fe80::a4a8:479f:c575:4d7e/128 On-link 24 306 fe80::a810:e3b5:293a:f198/128 On-link 12 276 fe80::e431:a790:525d:68fc/128 On-link 1 306 ff00::/8 On-link 12 276 ff00::/8 On-link 24 306 ff00::/8 On-link 13 281 ff00::/8 On-link 11 266 ff00::/8 On-link =========================================================================== Persistent Routes: If Metric Network Destination Gateway 0 4294967295 ::/0 On-link ===========================================================================