This problem most often originates in the settings of your web browser or your Internet connection. Try adjusting the Internet Options of your MS Internet Explorer web browser. (This problem does not typically affect Netscape/Firefox users). There are two separate adjustments that can be made, the first of which should correct the problem. If not, attempt the second and try again.
1. Open your browser's Advanced options. (Click the Tools menu and select Internet Options. Click the Advanced tab.)
Find the heading marked HTTP 1.1 Settings, and ensure that HTTP 1.1 protocol is ENABLED (checked) for use with Proxy Servers. (Both items under this heading should be checked.)
While on the Advanced page, make sure the Friendly HTTP Errors and Friendly URL's settings are DISABLED (unchecked). These can unhide additional information helpful in diagnosis and troubleshooting.
Make these adjustments and try to connect again. If this fails to correct the problem, try the second adjustment below.
2. If it is permitted by your administrator, you can bypass proxy servers entirely. This is controlled from the Connections section of the Internet Options screen. (Look under Connections, LAN Settings.) You may wish to contact your Internet service provider or network administrator first to find out if your connection will still work properly with proxies bypassed.
If neither of these steps rectify the situation, you will need to speak with your Internet service provider or network administrator about other network factors outside of our control.
If you need detailed assistance with locating the options noted above or making the adjustments described, contact us. You will need to know your web browser type and version number so we can provide specific instructions for your system.