diff --git a/usr/local/www/system_gateways_edit.php b/usr/local/www/system_gateways_edit.php
index 48f4dec246..c52180bbf0 100755
--- a/usr/local/www/system_gateways_edit.php
+++ b/usr/local/www/system_gateways_edit.php
@@ -644,7 +644,8 @@ function monitor_change() {
 							</tr>
 							<tr>
 								<td colspan="2">
-									<?= gettext("NOTE: The Frequency Probe interval must be less than the Down time, otherwise the gateway will seem to go down then come up again at the next probe."); ?><br/>
+									<?= gettext("The Frequency Probe interval must be less than the Down time, otherwise the gateway will seem to go down then come up again at the next probe."); ?><br/><br/>
+									<?= gettext("The total time before a gateway is down is the product of the Frequency Probe and the Down fields. By default this is 1*10=10 seconds."); ?><br/>
 								</td>
 							</tr>
 						</table>