If you have a A631 RTK package that you are using for water management and the Diff Age is staying above 3 secs. Log into the Web UI and make sure that only port A is configure. If port be is configured then turn all of the port B settings off. You should see Diff Age drop and operate between 0 - 2 secs.
If the problem persists please contact Global Customer Care at Support@outbackguidance.com.