we recently launched an update version of our site. The front end was programmed using visual studio .net using vb. our iis server is running 6.0. Our old website was just asp developed on I believe vb. In house we had no problems. Now we launched and with 1 in 100 clients get page cannot be displayed. If they try it again a minute later they are fine, so I don't think it is a firewall issue. I actually got it at home as well with all security taken down and it was like the web site could be found, it took a good 3 minutes before the error page came up. when I went back it popped up instantly. We are running 6 gateways each with the capability of handling well over 200 clients at a time and the most we've had in the past two days at one time is just over 100 logged in at the same time.