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ISP/DC IP Authentication Guide

Go to your dashboard and click Proxies → Manage → DCs Subscriptions.
Go to your order and click Manage Order.
Put the IP(s) you want to authenticate in the right-hand side of the page under DC Proxies Whitelisting and then click Submit Request.
Please note that if you've changed your server port, you only need to enter in your server IP address. Correct: 123.123.123.123 Incorrect: 123.123.123.123:12345
You should now be able to copy your proxies and use them.
You don't have to use IP authentication if you're using credential authentication for your proxies. Same for IP authentication, you do not have to use credential authentication if you're using IP authentication.