Two different users have told me that they are unable to vote, comment or answer in the discussion section. They complain that they see the discussion topic at the top of the proposal and when they click on it they see it fine but they appear to be logged out. If they try to log back in they are taken to area51.stackexchange.com and as soon as they navigate back to discuss.area51.stackexchange.com they are logged out again.
What do these users (IDs 150215 and 150161) have to do to be able to stay logged in on the discussion zone? I can't really tell what I have done to be able to login to discussion that they haven't done? I'm trying to gather support for my proposal and it is important for me that they are able to participate in the discussions too.