I have problem login for long time
 

After login for a few seconds, I was asked to login again.

Welcome to LQ!

This thread is only to introduce yourself, not to seek technical help.
From your question, may I suggest you read one of these articles >
http://www.catb.org/~esr/faqs/smart-questions.html
http://www.linuxquestions.org/linux/...Ask_a_Question

The first one is a bit more thorough, as it will also help you learn where to search for answers, and how the seasoned veterans of the Linux world will respond to your questions. Either one will help you learn how to pose a better question.

Remember, the type of question you pose usually determines the type of answer you get.

Moved: This thread is more suitable in Linux-General and has been moved accordingly to help your thread/question get the exposure it deserves.

Does it happen to all your users or only that one? When does it happen? Both GUI login and the console? Do you get any error messages?