Step 1 : Click on “Settings”
Step 2 : Connect to a WiFi network and click on the connected network.
Step 3 : Scroll to the bottom and choose the option “ Configure Proxy “ under HTTP proxy.
Step 4 : Select the option “ Manual “
Step 5 : Follow steps in the image below for IP based Authentication on proxies and click on “ Save “ once the details are entered..
Step 6 : For proxies with Username based Authentication, Please refer the below image and click on “ Save “ once the details are entered.