> > Have you contacted "isp.net", whoever they are, to make sure that they > > have not blackholed or tarpitted that particular machine's IP address > > for some reason? > > He said that the box is behind a nat and only that box behind the nat > has a problem. I doubt that it has been specifically targetted by ip. I've narrowed things down to not include the Linux box. :) I took the Linux box's IP and moved it to another non Linux machine. The same issues occur. I have the network guy reviewing things. Shawn