Why Are Web Proxy Resources of the Domain Name Type Inaccessible on the Windows 7 Operating System?
The Windows 7 operating system has modified the DNS processing mechanism for enhanced security. Due to such modifications, web proxy components cannot block DNS requests. As a result, the IP addresses of web proxy resources are unavailable, and users cannot open the page for web proxy resources on the Windows 7 operating system.
To resolve this issue, enable the Automatic resolution for web proxy resources.