I have a strange problem with the internet access of 3rd party programs. Whenever I want to update a program, it cannot access the update server and gives an error complaining about the internet connectivity (cannot connect to the update server). However, I have no problem with Windows updates which are downloaded and installed automatically. I closed down the firewall, antivirus and UAC, tried again and no luck. The only possibility I can think of is the proxy server of our company.
Last year, IT has set up a proxy server and changed the LAN configuration on our PCs. Without the following setting done, no one can connect to the internet:
Assume that the name of our company is XYZ. We have both
The setting is under
Internet Options > Local Area Network (LAN) Settings. A similar setting is needed by Firefox. Under
Options > Advanced > Network > Settings, the following setting is present:
At that time, we were using old laptops with Windows XP SP3. There was no problem at all. Now we have new laptops with Windows 7.
How can I diagnose and confirm that the problem comes from the global proxy settings, if there is any; and how can I fix that? What steps should I follow?