By default, if you have not whitelisted any IP address before, system automatically accepts connection from all IP addresses. Once you start whitelisting, system will only accept connection made from whitelisted IP addresses. For this reason, IP whitelisting is a good way to prevent unauthorized access to your Quoinex account.
First, go to Settings > IP Whitelist.
Click Add New IP.
Enter the IP address you want to whitelist and get a 2-factor authentication (2FA) token from your 2FA device. Click Add to complete.