We had an existing VPN working properly. We since have changed ISPs. I changed the Outside IP address and Route on the PIX 506e router at the main site to connect to the new ISP. Internet service at the main site works fine. I then change the VPN client server IP address on the client PIX 501. Client sites also have Internet service that work fine. The problem is the VPN tunnel does not work anymore. Also cannot get into the PIX 506e at the main site anymore through SSH (outside). Any Ideas what happened.