I think the bug description is not very clear: there are situations in which disabling GSSAPIAuthentication on server side fix the issue (maybe because of DNS doesn't have a reverse resolution, as in my situation fixed just putting GSSAPIAuthentication to off on a server that doesn't have a reserve resolution as it has a prive IP ) and other not (as you can read from most comments).
I think the bug description is not very clear: there are situations in which disabling GSSAPIAuthentic ation on server side fix the issue (maybe because of DNS doesn't have a reverse resolution, as in my situation fixed just putting GSSAPIAuthentic ation to off on a server that doesn't have a reserve resolution as it has a prive IP ) and other not (as you can read from most comments).