Hi, Frederic, I am using VPN to connect university resource (cisco VPN client). By checking this thread, VPN works smoothly (allowing the protocol, allowing 2 additional UDP ports). https://www.wilderssecurity.com/showthread.php?t=174040 But, (1) I have the same problem as Thomas described (LnS switches automatically to the VPN interface when VPN connects). In that thread, you mentioned that LnS SHOULD NOT change the binding interface. In my case, it always changes automatically. Is this normal? (2) When using a PPPoE connection, there are 3 interfaces, namely VPN interface (IP: 184.108.40.206) Wan Miniport Interface (IP:220.127.116.11) Ethernet (IP: 192.168.1.1) If LnS still binds to Miniport one, can it filter the traffic of VPN? (3) When VPN is connected, there are 3 IP addresses of my PC. If LnS binds to VPN one, does it mean that the wan miniport one is unprotected? (just ping from another pc, seems the wan miniport ons is invisible or deactived, because there is no reply) Thanks in advance.