I was upgrading from ArcGIS 10.1 to 10.2. When I did this, my computer was no longer able to connect to port 6080. My firewall is turned off and I used netstat to find that the port is not even listening. I set up a VM with a Windows 7 OS on it and was able to get to the Server Manager with no problem. As of right now I think that Windows 8 on my local machine may be the issue, but ESRI claims that 10.2 should work with Windows 8. Any help would be appreciated. The only error I am receiving is "Google Chrome could not connect to localhost:6080." I get a similar message in all other browsers as well.