I'm getting an 'Invalid IP' message when syncing users
Print
4
If you're getting messages such as: "
WHMCS returned: result=error;message=Invalid IP 123.123.123.123;" then you probably forgot to white list that IP from accessing your WHMCS installation.
To do so, in WHMCS, go to Setup > General Settings > Security and add the IP you want to white list in "API IP Access Restriction".