diff --git a/ajax/networking/get_frequencies.php b/ajax/networking/get_frequencies.php
index bc21e4cc..7fb29990 100644
--- a/ajax/networking/get_frequencies.php
+++ b/ajax/networking/get_frequencies.php
@@ -2,6 +2,7 @@
 
 require '../../includes/csrf.php';
 require_once '../../includes/config.php';
+require_once '../../includes/locale.php';
 
 if (isset($_POST['interface'])) {
 
@@ -25,16 +26,16 @@ if (isset($_POST['interface'])) {
 
     switch ($flags) {
     case NL80211_BAND_24GHZ:
-        $msg = _("The selected interface has support for the 2.4 GHz wireless band only.");
-       break;
+        $msg = sprintf(_("The selected interface (%s) has support for the 2.4 GHz wireless band only."), $iface);
+        break;
     case NL80211_BAND_5GHZ:
-        $msg = _("The selected interface has support for the 5 GHz wireless band only.");
+        $msg = sprintf(_("The selected interface (%s) has support for the 5 GHz wireless band only."), $iface);
         break;
     case NL80211_BAND_24GHZ | NL80211_BAND_5GHZ:
-        $msg = _("The selected interface has support for both the 2.4 and 5 GHz wireless bands.");
+        $msg = sprintf(_("The selected interface (%s) has support for both the 2.4 and 5 GHz wireless bands."), $iface);
         break;
     default:
-        $msg = _("The selected interface does not support wireless mode operation.");
+        $msg = sprintf(_("The selected interface (%s) does not support wireless mode operation."), $iface);
     }
     echo json_encode($msg);
 }
diff --git a/app/js/custom.js b/app/js/custom.js
index 4615ebb9..1412b44f 100644
--- a/app/js/custom.js
+++ b/app/js/custom.js
@@ -389,13 +389,17 @@ function loadChannelSelect(selected) {
 }
 
 /* Sets hardware mode tooltip text for selected interface.
- * Messages are sent from ajax request for gettext locale support.
  */
 function setHardwareModeTooltip() {
     var iface = $('#cbxinterface').val();
+    var hwmodeText = '';
+    // Explanatory text if 802.11ac is disabled
+    if ($('#cbxhwmode').find('option[value="ac"]').prop('disabled') == true ) {
+        var hwmodeText = $('#hwmode').attr('data-tooltip');
+    }
     $.post('ajax/networking/get_frequencies.php?',{'interface': iface},function(data){
-        responseText = JSON.parse(data);
-        $('#tiphwmode').attr('data-original-title', responseText);
+        var responseText = JSON.parse(data);
+        $('#tiphwmode').attr('data-original-title', responseText + '\n' + hwmodeText );
     });
 }
 
diff --git a/includes/functions.php b/includes/functions.php
index 6ab8a40a..df437037 100755
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -796,10 +796,11 @@ function get_public_ip()
  *
  * @return string $tooltip
  */
-function getTooltip($msg, $id, $visible = true)
+function getTooltip($msg, $id, $visible = true, $data_html = false)
 {
-    ($visible) ? $opt = 'visible' : $opt = 'invisible';
-    $tooltip = '<i class="fas fa-question-circle text-muted ' .$opt.'" id="' .$id. '" data-toggle="tooltip" data-placement="auto" title="' . _($msg). '"></i>';
+    ($visible) ? $opt1 = 'visible' : $opt1 = 'invisible';
+    ($data_html) ? $opt2 = 'data-html="true"' : $opt2 = 'data-html="false"';
+    $tooltip = '<i class="fas fa-question-circle text-muted ' .$opt1.'" id="' .$id. '" data-toggle="tooltip" ' .$opt2. ' data-placement="auto" title="' . _($msg). '"></i>';
     return $tooltip;
 }
 
diff --git a/locale/en_US/LC_MESSAGES/messages.mo b/locale/en_US/LC_MESSAGES/messages.mo
index 906fb5e8..c1a7c5c7 100644
Binary files a/locale/en_US/LC_MESSAGES/messages.mo and b/locale/en_US/LC_MESSAGES/messages.mo differ
diff --git a/locale/en_US/LC_MESSAGES/messages.po b/locale/en_US/LC_MESSAGES/messages.po
index 02a8ce22..fd1ff0c1 100644
--- a/locale/en_US/LC_MESSAGES/messages.po
+++ b/locale/en_US/LC_MESSAGES/messages.po
@@ -585,17 +585,20 @@ msgstr "Sets the <code>txpower</code> option for the AP interface and the config
 msgid "dBm is a unit of level used to indicate that a power ratio is expressed in decibels (dB) with reference to one milliwatt (mW). 30 dBm is equal to 1000 mW, while 0 dBm equals 1.25 mW."
 msgstr "dBm is a unit of level used to indicate that a power ratio is expressed in decibels (dB) with reference to one milliwatt (mW). 30 dBm is equal to 1000 mW, while 0 dBm equals 1.25 mW."
 
-msgid "The selected interface has support for the 2.4 GHz wireless band only."
-msgstr "The selected interface has support for the 2.4 GHz wireless band only."
+msgid "The selected interface (%s) has support for the 2.4 GHz wireless band only."
+msgstr "The selected interface (%s) has support for the 2.4 GHz wireless band only."
 
-msgid "The selected interface has support for the 2.5 GHz wireless band only."
-msgstr "The selected interface has support for the 2.5 GHz wireless band only."
+msgid "The selected interface (%s) has support for the 2.5 GHz wireless band only."
+msgstr "The selected interface (%s) has support for the 2.5 GHz wireless band only."
 
-msgid "The selected interface has support for both the 2.4 and 5 GHz wireless bands."
-msgstr "The selected interface has support for both the 2.4 and 5 GHz wireless bands."
+msgid "The selected interface (%s) has support for both the 2.4 and 5 GHz wireless bands."
+msgstr "The selected interface (%s) has support for both the 2.4 and 5 GHz wireless bands."
 
-msgid "The selected interface does not support wireless mode operation."
-msgstr "The selected interface does not support wireless mode operation."
+msgid "The selected interface (%s) does not support wireless mode operation."
+msgstr "The selected interface (%s) does not support wireless mode operation."
+
+msgid "The 802.11ac 5 GHz option is disabled until a compatible wireless regulatory domain is set."
+msgstr "The 802.11ac 5 GHz option is disabled until a compatible wireless regulatory domain is set."
 
 #: includes/networking.php
 msgid "Summary"
diff --git a/templates/hostapd/basic.php b/templates/hostapd/basic.php
index 77475b27..ddc019ad 100644
--- a/templates/hostapd/basic.php
+++ b/templates/hostapd/basic.php
@@ -17,7 +17,7 @@
   <div class="row">
     <div class="form-group col-md-6">
       <label for="cbxhwmode"><?php echo _("Wireless Mode") ;?></label>
-      <?php echo getTooltip('Initial state.', 'tiphwmode', true); ?>
+      <?php echo getTooltip(null, 'tiphwmode', true); ?>
       <?php
       $countries_5Ghz_max48ch = RASPI_5GHZ_ISO_ALPHA2;
       $selectedHwMode = $arrConfig['hw_mode'];
@@ -36,7 +36,6 @@
               $selectedHwMode = 'w';
           }
       }
-
       if (!in_array($arrConfig['country_code'], $countries_5Ghz_max48ch)) {
           $hwModeDisabled = 'ac';
           if ($selectedHwMode === $hwModeDisabled) {
@@ -44,6 +43,7 @@
           }
       }
       SelectorOptions('hw_mode', $arr80211Standard, $selectedHwMode, 'cbxhwmode', 'loadChannelSelect', $hwModeDisabled); ?>
+      <div id="hwmode" data-tooltip="<?php echo _("The 802.11ac 5 GHz option is disabled until a compatible wireless regulatory domain is set."); ?>"></div>
     </div>
   </div>
   <div class="row">