Redmine

Hi

We are using redmine 1.1.2. One user experiences problem that he is kicked off the redmine for several times per day. He don't even close the browser. In log files the messasges are as follows:

Processing WelcomeController#index (for 192.168.240.79 at 2014-03-31 22:23:28) [GET]
  Parameters: {"controller"=>"welcome", "action"=>"index"}
Redirected to http://redmine/login?back_url=http%3A%2F%2Fredmine%2F
Filter chain halted as [:check_if_login_required] rendered_or_redirected.
Completed in 10ms (DB: 3) | 302 Found [http://redmine/]

Processing AccountController#login (for 192.168.240.79 at 2014-03-31 22:23:28) [GET]
  Parameters: {"back_url"=>"http://redmine/", "controller"=>"account", "action"=>"login"}
Rendering template within layouts/base
Rendering account/login
Completed in 13ms (View: 8, DB: 2) | 200 OK [http://redmine/login?back_url=http%3A%2F%2Fredmine%2F]

I've checked cookies and at the moment of log-off there is only cookie named `_redmine_session` and no `autologin` cookie.

I am out of ideas know where to look at the problems :( He has AdBlock extension installed in his chrome browser.

Any help appreciated.

Best regards, Vitaly Litvak.