Radius Timeout after update to 6.4.7

Hello everyone,
I have several boards running.
CCR1016-12G
Everyone got the update to 6.47 completely problem-free and the restart has become much faster.
I have the mistake of one.

ppp error user authentication failed - radius timeout

The radius works easily for others in the same network.
ICMP radius, microtics no problem.

What can i do?