Always on VPN AD auth + Google Authenticator

Hello,

 

I'm trying config 2FA and always on VPN (Always Connected mode on BigIP Edge). I use Google Authenticator for 2FA. Everything are OK. At the first time, I log in success with username/password + GG token but after I reboot I must input GG token again. Have solution to by pass that and only input user/pass + token after timeout. I follow that guide https://loadbalancing.se/2016/07/09/setting-up-apm-with-google-authenticator/

 

Thanks.