Proxy setting for UoM internal devices step by step guide Open Start Menu and search for "Proxy settings" and open it. Beforehand, remove existing proxy settings if you have any. Then turn on "Automatically detect settings" then click on "Set up". Turn on "Use setup script" and enter http://cache.uom.lk as the script address, and click save. Open up your favorite browser, make sure your browser proxy settings are not altered, do a google search for "what is my IP address" click on the first link. or visit https://whatismyipaddress.com/ you should see at least one of the below addresses.