I have a Dell Optiplex 745 that is showing as connected to the Internet however when I try to load up a webpage it says "Unable to Connect" because Firefox can't establish a connection to the Server. I have tried to set the TCP/IP to automatically detect the settings and even Internet Explorer shows that is is connected via the Proxy Server. Does anyone know what else I can do?

Check out these network troubleshooting tips, see if it helps. If there is no network connection problem, you need to make sure your DNS servers is able to resolve domain name correctly. Hope this helps.

Check out these network troubleshooting tips, see if it helps. If there is no network connection problem, you need to make sure your DNS servers is able to resolve domain name correctly. Hope this helps.