--- samba-3.0.22/source/nsswitch/winbindd_pam.c.org	2007-10-04 17:55:36.000000000 +0200
+++ samba-3.0.22/source/nsswitch/winbindd_pam.c	2007-10-04 18:00:36.000000000 +0200
@@ -378,6 +378,11 @@
 			invalidate_cm_connection(&contact_domain->conn);
 			retry = True;
 		} 
+
+		if (NT_STATUS_EQUAL(result, NT_STATUS_UNEXPECTED_NETWORK_ERROR) ) {
+			DEBUG(3,("winbindd_pam_auth: The connection was broken, retrying\n"));
+			retry = True;
+		}
 		
 	} while ( (attempts < 2) && retry );