we are using Duo with RRAS 2012 R2.
When user are connecting, then he may receive more than one Push notifications.
I think that user has very short time to confirm an authentication.
is it possible to increase the time for answer?
The Duo Push timeout is 60 seconds. Did you increase the RRAS timeout to match? See her: https://duo.com/docs/rras#change-the-rras-authentication-settings.
i changed to 15 sec. it works perfect!