--- a/master/fsm_master.c	Fri Dec 09 10:31:29 2011 +0100
+++ b/master/fsm_master.c	Fri Dec 09 10:35:23 2011 +0100
@@ -219,6 +219,8 @@
 
         ec_master_clear_slaves(master);
         fsm->slave_states = 0x00;
+        fsm->slaves_responding = 0; /* reset to trigger rescan on next link
+                                       up. */
     }
     fsm->link_state = master->main_device.link_state;