I had a customer that was setup with two servers, a SBS2011 as the main server and then a Server 2012 as a secondary one, we needed the secondary one because the software companies client application would not work on SBS2011 - I firmly believe I had worked with them about six years ago to set all this up but they say we didnt. We are using a Sonicwall TZ400W for the firewall. Fast forward to now, we replaced the two servers with one - a Windows 2012 server running both the database and the client application. We have a link on the website for the client application so it will go to the public IP of the customer and supposed to open but we would get a timeout. I spoke to the software company and they felt it had something to do with port forwarding on the firewall - I did find an Address Object where it was pointing to the old server, I changed this and now I get a 404 page not found error, so it appears its getting further in the process. If I am on the server, and go into localhost, it brings up the program right away. I have been working with Sonicwall trying to figure out a solution. The one thing I thought of is when we put in the new server, we used the existing cable from the old main server - and just unplugged the other one - which both were plugged into the Sonicwall - one on X0 and the other on X1 - not sure if that would make a difference or not.