2FA/MFA with RADIUS drops the VPN connection after 60 minutes

[Alexander 3]

hi.
i am having problems with the vpn and mfa with RADIUS. Systematically every hour the connection drops (60min). There seems to be something that every 60min drops the connection or disconnects the VPN. I tried looking in the config files, but couldn't find anything. Anyone have any ideas? Thanks.

[viktor_g]

What type of MFA? FreeRADIUS TOTP or something else?

[Alexander 3]

@viktor_g freeradius TOTP

[viktor_g]

Confirmed

Redmine issue created: https://redmine.pfsense.org/issues/12381

[rkelleyrtp]

We ran into a similar issue with pfSense 2.5.1 running OpenVPN with RADIUS and 2FA/MFA. For us, the fix adding these options in the OpenVPN Client Export tool under Additional configuration options :

reneg-sec 0
hand-window 120
auth-nocache

Now, our 2FA/MFA with RADIUS works very well.