I have whitelisted several friends on my server with no previous issues, but for some reason, I'm having trouble whitelisting a new friend. The server notifies me that I have whitelisted him, and I restarted it to make sure it would work properly, but when he attempts to join, he receives a message that says he is not whitelisted on my server. I've tried un-whitelisting and re-whitelisting him as well, but the issue still persists. He is on a very new account, so that could be why. Any advice?