How to Clear a Proxy
- 1). Click the Windows Start button and select "Settings." In the menu items, click the "Control Panel" option.
- 2). Double-click the icon labeled "Administrative Tools." Double-click the "Services" icon to open the list of services on your computer.
- 3). Scroll down to the service labeled "Microsoft WinSock Proxy Service." Double-click this service to open the properties.
- 4). Click the "Stop" button to stop the service. After it stops, click the "Start" button to restart it. This clears the cache from the stop of the service and restarts it so your users can return to using the proxy server.
Source...