If you are Legacy wishing for your friends to be able to play then I doubt they will be able to enter on Legacy servers for the moment(?). If your friends are not able to enter straight away, then give them a few minutes/hours. They will eventually be able to log in and create a character. The Queue system is now implimented and should be working correctly. So they should have no problem in logging in after creating a character, given that they wait until they have queued to enter the server.