I was poking around the client logs and was looking into the trac.log file and found these lines. Could the local settings be overriding the gateway? In our GWs trac_client_1.ttm file we have neo_user_re_auth_timeout set to default (client_decide). It's been this way forever but only when we started messing with upgrade clients and add/remove sites the 8 hour limit started popping up.
I'll update next week after talking to TAC unless you're familiar with this setting.
Line 43922: [ 7396 8900][6 Sep 11:28:14][CONFIG_MANAGER] neo_user_re_auth_timeout return value 1200, because it is Gateway config variable. Scope: site COMP-Primary (2FA) ,gw NULL ,user USER
Line 44079: [ 7396 8900][6 Sep 11:28:14][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-Primary (Certificate), gw NULL ,user USER
Line 44236: [ 7396 8900][6 Sep 11:28:14][CONFIG_MANAGER] neo_user_re_auth_timeout return value 1200, because it is Gateway config variable. Scope: site COMP-Secondary (2FA) ,gw NULL ,user USER
Line 44392: [ 7396 8900][6 Sep 11:28:14][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-VPN (Certificate), gw NULL ,user USER
Line 44550: [ 7396 8900][6 Sep 11:28:14][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-Secondary (Certificate), gw NULL ,user USER
Line 44707: [ 7396 8900][6 Sep 11:28:14][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-VPN (2FA), gw NULL ,user USER
Line 44872: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 1200, because it is Gateway config variable. Scope: site COMP-Primary (2FA) ,gw NULL ,user USER
Line 45029: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-Primary (Certificate), gw NULL ,user USER
Line 45186: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 1200, because it is Gateway config variable. Scope: site COMP-Secondary (2FA) ,gw NULL ,user USER
Line 45342: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-VPN (Certificate), gw NULL ,user USER
Line 45499: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-Secondary (Certificate), gw NULL ,user USER
Line 45656: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-VPN (2FA), gw NULL ,user USER
Line 45814: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 1200, because it is Gateway config variable. Scope: site COMP-Primary (2FA) ,gw NULL ,user USER
Line 45971: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-Primary (Certificate), gw NULL ,user USER
Line 46128: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 1200, because it is Gateway config variable. Scope: site COMP-Secondary (2FA) ,gw NULL ,user USER
Line 46284: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-VPN (Certificate), gw NULL ,user USER
Line 46441: [ 7396 8900][6 Sep 11:28:15][CONFIG_MANAGER] neo_user_re_auth_timeout return value 480, because it is Default variable. Scope: site COMP-Secondary (Certificate), gw NULL ,user USER