diff --git a/etc/inc/vslb.inc b/etc/inc/vslb.inc
index f2bf5324f1..49089a2428 100644
--- a/etc/inc/vslb.inc
+++ b/etc/inc/vslb.inc
@@ -337,7 +337,7 @@ function relayd_configure($kill_first=false) {
 
 						$conf .= "  forward to <{$vs_a[$i]['poolname']}> port {$dest_port} {$lbmode} {$check_a[$pools[$vs_a[$i]['poolname']]['monitor']]} \n";
 
-						if (isset($vs_a[$i]['sitedown']) &&  strlen($vs_a[$i]['sitedown']) > 0)
+						if (isset($vs_a[$i]['sitedown']) &&  strlen($vs_a[$i]['sitedown']) > 0 && ($vs_a[$i]['relay_protocol'] != 'dns'))
 							$conf .= "  forward to <{$vs_a[$i]['sitedown']}> port {$dest_port} {$lbmode} {$check_a[$pools[$vs_a[$i]['poolname']]['monitor']]} \n";
 						$conf .= "}\n";
 					} else  {
@@ -349,7 +349,7 @@ function relayd_configure($kill_first=false) {
 							$conf .= "  sticky-address\n";
 
 						/* sitedown MUST use the same port as the primary pool - sucks, but it's a relayd thing */
-						if (isset($vs_a[$i]['sitedown']) && strlen($vs_a[$i]['sitedown']) > 0)
+						if (isset($vs_a[$i]['sitedown']) && strlen($vs_a[$i]['sitedown']) > 0 && ($vs_a[$i]['relay_protocol'] != 'dns'))
 							$conf .= "  forward to <{$vs_a[$i]['sitedown']}> port {$dest_port} {$check_a[$pools[$vs_a[$i]['sitedown']]['monitor']]} \n";
 
 						$conf .= "}\n";
diff --git a/usr/local/www/load_balancer_virtual_server_edit.php b/usr/local/www/load_balancer_virtual_server_edit.php
index 2f66c9685a..db7a49fd15 100755
--- a/usr/local/www/load_balancer_virtual_server_edit.php
+++ b/usr/local/www/load_balancer_virtual_server_edit.php
@@ -96,6 +96,9 @@ if ($_POST) {
 	else if (is_subnetv4($_POST['ipaddr']) && subnet_size($_POST['ipaddr']) > 64)
 		$input_errors[] = sprintf(gettext("%s is a subnet containing more than 64 IP addresses."), $_POST['ipaddr']);
 
+	if ((strtolower($_POST['relay_protocol']) == "dns") && !empty($_POST['sitedown']))
+		$input_errors[] = gettext("You cannot select a Fall Back Pool when using the DNS relay protocol.");
+
 	if (!$input_errors) {
 		$vsent = array();
 		if(isset($id) && $a_vs[$id])
@@ -232,7 +235,8 @@ include("head.inc");
             				}
             			?>
             			</select>
-				<br><b><?=gettext("NOTE:"); ?></b> <?=gettext("This is the server that clients will be redirected to if *ALL* servers in the pool are offline."); ?>
+				<br><?=gettext("The server pool to which clients will be redirected if *ALL* servers in the Virtual Server Pool are offline."); ?>
+				<br><?=gettext("This option is NOT compatible with the DNS relay protocol."); ?>
 				  <?php endif; ?>
                   </td>
 				</tr>