What browser are you using?
In
Internet Explorer:
Open Internet Explorer. Click Tools > Internet Options > Connections > Lan settings > Under Proxy server, uncheck the "Use a proxy server for your LAN......." box and click OK.
In
Firefox:
Click Tools > Options... > Advanced > Network > Settings > select No proxy > click OK.
In
Google Chrome:
Open Google Chrome
Click on the Menu key > Settings > Show Advanced Settings.
Scroll to the Network section > Change proxy settings.
Go to the Connections tab.
Click on LAN Settings.
Uncheck "Use a proxy for your LAN..."