Reorder network adapter bindings
Go Up to Disabling Automatic Internet Dialup
You probably have a dialup adapter and an ethernet adapter for your local network. On Windows, you can reverse the bindings order for your two adapters to force the ethernet adapter service the TCP/IP request before the dialup adapter tries. You can do this in the Control Panel by choosing Networking|Bindings|All Adapters|Move Down.
The local ethernet adapter satisfies TCP/IP requests it can, and those requests that can't be done locally—such as Internet requests—are passed on to the next adapter in the list, the dialup adapter.