[TYPO3-dev] unexpected logout

[Bartosz Aninowski]

> How can I check what is the reason of unexpected logout in frontend?
> This happend randomly varous users after couple of seconds after sign in.
> Sometime they need to logon couple of times.
> I've enabled devlog but found nothing except logoff: ses_id =

I have more dbeug log regarding above issue.
Something change cookie name during one session.
User logged in, then try to access next subpage and system loged out him

Please look at this debug. Current  fe_typo_user is diffrent than id in 
sql select.


								COOKIE: Array
(
     [fe_typo_user] => fc43445c19e594e5b9bdb2a80c54afcb
     [PHPSESSID] => nii6rpnp3gfd36fffp5ebpgme4
)

								Query: SELECT *
			FROM fe_sessions,fe_users
			WHERE
				fe_sessions.ses_id = 'fba9b581d15d3733df1bdb798fe91d86'
							AND fe_sessions.ses_name = 'fe_typo_user'
							AND fe_sessions.ses_userid = fe_users.uid
							AND (
				fe_sessions.ses_iplock='192.168'
				OR fe_sessions.ses_iplock='[DISABLED]'
				)
							AND fe_sessions.ses_hashlock=97656999
							 AND fe_users.disable=0 AND fe_users.deleted=0 AND 
(fe_users.starttime<=1237449540) AND (fe_users.endtime=0 OR 
fe_users.endtime>1237449540)
								THIS: tslib_feUserAuth::__set_state(array(
    'session_table' => 'fe_sessions',
    'name' => 'fe_typo_user',
    'get_name' => 'ftu',
    'user_table' => 'fe_users',
    'username_column' => 'username',
    'userident_column' => 'password',
    'userid_column' => 'uid',
    'lastLogin_column' => 'lastlogin',
    'enablecolumns' =>
   array (
     'deleted' => 'deleted',
     'disabled' => 'disable',
     'starttime' => 'starttime',
     'endtime' => 'endtime',
   ),
    'formfield_uname' => 'user',
    'formfield_uident' => 'pass',
    'formfield_chalvalue' => 'challenge',
    'formfield_status' => 'logintype',
    'formfield_permanent' => 'permalogin',
    'security_level' => 'normal',
    'auth_include' => '',
    'auth_timeout_field' => 6000,
    'lifetime' => 0,
    'sendNoCacheHeaders' => 0,
    'getFallBack' => 1,
    'getMethodEnabled' => 1,
    'usergroup_column' => 'usergroup',
    'usergroup_table' => 'fe_groups',
    'groupData' =>
   array (
     'title' =>
     array (
     ),
     'uid' =>
     array (
     ),
     'pid' =>
     array (
     ),
   ),
    'TSdataArray' =>
   array (
   ),
    'userTS' =>
   array (
   ),
    'userTSUpdated' => 0,
    'showHiddenRecords' => 0,
    'sesData' =>
   array (
   ),
    'sesData_change' => 0,
    'userData_change' => 0,
    'global_database' => '',
    'gc_time' => 0,
    'gc_probability' => 1,
    'writeStdLog' => false,
    'writeAttemptLog' => false,
    'hash_length' => 32,
    'lockIP' => 2,
    'lockHashKeyWords' => 'useragent',
    'warningEmail' => '',
    'warningPeriod' => 3600,
    'warningMax' => 3,
    'checkPid' => 1,
    'checkPid_value' => '0',
    'id' => 'fba9b581d15d3733df1bdb798fe91d86',
    'cookieId' => 'fc43445c19e594e5b9bdb2a80c54afcb',
    'loginFailure' => false,
    'loginSessionStarted' => false,
    'get_URL_ID' => '',
    'newSessionID' => true,
    'forceSetCookie' => false,
    'dontSetCookie' => false,
    'challengeStoredInCookie' => false,
    'loginType' => 'FE',
    'svConfig' => NULL,
    'writeDevLog' => true,
    'is_permanent' => 1,
))
09-03-19 08:59:00 INFO     t3lib_userAuth       logoff: ses_id = 
fba9b581d15d3733df1bdb798fe91d86