Rudder

Since Rudder 2.8 I see a lot of times this message on nodes:

2014-01-07T15:32:28+0100   notice: R: *********************************************************************************
* rudder-agent could not get an updated configuration from the policy server.   *
* This can be caused by a network issue, an unavailable server, or if this      *
* node was deleted from the Rudder root server.                                 *
* Any existing configuration policy will continue to be applied without change. *
*********************************************************************************

However, rudder-agent still does it's job, but with this message at the end. After removing all tcdb files the message disappears (for a while). I can't reproduce it.