Proxy server is dedicated computer or software system running on computer that can acts as intermediate between endpoints devices such as computer and another server that client is trying to making request to get a service.
Proxy server bypass the Network And hides the original network and take you to the internet.
Type inetcpl.cpl in search or simply go to internet option in internet explorer
Click on Lan settings In my case the proxy server IP is 10.10.10.10 and port is 80
Use your company proxy server for addressing begin
Click on ok and you’re done with it.