If you're having trouble using a username and password in your program, don't worry. Instead, you can authorize your IP address to access the proxies. That way, you'll be able to get things up and running smoothly in no time.
To configure IP Authorization, you just need to follow these simple steps:
Go to the Proxy Settings page.
Go to the IP Authorizations section and click "Add New IP Address"
Type in your IP address and click the "Save" button.
That's it, you've authorized your IP!