--- loncom/lonnet/perl/lonnet.pm	2017/12/22 17:58:16	1.1364
+++ loncom/lonnet/perl/lonnet.pm	2017/12/29 23:51:50	1.1365
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1364 2017/12/22 17:58:16 raeburn Exp $
+# $Id: lonnet.pm,v 1.1365 2017/12/29 23:51:50 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -5229,6 +5229,9 @@ sub set_first_access {
                         'course.'.$courseid.'.timerinterval.'.$res => $interval,
                      }
                   );
+            if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
+                $cachedtimes{"$courseid\0$res"} = $start;
+            }
         }
         return $putres;
     }