We are running a Cisco PIX 515 with VPN at my office. I have upgraded the IOS to version 6.3(4), and updated the VPN Client to 4.0.5(c). At my home, I am connected to the internet using high-speed cable modem, which is connected to a Linksys Wireless Router and Access Point. The internet connection has a single public IP address, and the linksys serves as a dhcp server for my home computers. When I connect to the VPN from my laptop and my desktop at the same time, I do receive 2 different IP addresses from the PIX for the units. However, I can only stay connected for 10 - 20 minutes with multiple connections. If I only have one computer connected to the VPN from home, I can stay on for as long as the maximum set in the PIX (about 8 hours). I have a NAT-traversal statement "isakmp nat-traversal 20" coded in the PIX, at the suggestion of a friend. Prior to putting that statement in, I could not have multiple connections at all. Will changing the 20 value help? Is there a way that I can have more than one connection simultaneously? This is needed with the directors of my company have meetings off-site, but need to connect via the convention centers broadband connection.