diff --git a/src/gui/networksettings.cpp b/src/gui/networksettings.cpp
index d2436396dd6..2c9aa3c48df 100644
--- a/src/gui/networksettings.cpp
+++ b/src/gui/networksettings.cpp
@@ -55,6 +55,8 @@ NetworkSettings::NetworkSettings(QWidget *parent)
         _ui->manualSettings, &QWidget::setEnabled);
     connect(_ui->manualProxyRadioButton, &QAbstractButton::toggled,
         _ui->typeComboBox, &QWidget::setEnabled);
+    connect(_ui->manualProxyRadioButton, &QAbstractButton::toggled,
+        this, &NetworkSettings::checkAccountLocalhost);
 
     loadProxySettings();
     loadBWLimitSettings();
@@ -80,6 +82,7 @@ NetworkSettings::NetworkSettings(QWidget *parent)
     // Warn about empty proxy host
     connect(_ui->hostLineEdit, &QLineEdit::textChanged, this, &NetworkSettings::checkEmptyProxyHost);
     checkEmptyProxyHost();
+    checkAccountLocalhost();
 }
 
 NetworkSettings::~NetworkSettings()
@@ -229,8 +232,27 @@ void NetworkSettings::showEvent(QShowEvent *event)
         checkEmptyProxyHost();
         saveProxySettings();
     }
+    checkAccountLocalhost();
 
     QWidget::showEvent(event);
 }
 
+
+void NetworkSettings::checkAccountLocalhost()
+{
+    bool visible = false;
+    if (_ui->manualProxyRadioButton->isChecked()) {
+        // Check if at least one account is using localhost, because Qt proxy settings have no
+        // effect for localhost (#7169)
+        for (const auto &account : AccountManager::instance()->accounts()) {
+            const auto host = account->account()->url().host();
+            // Some typical url for localhost
+            if (host == "localhost" || host.startsWith("127.") || host == "[::1]")
+                visible = true;
+        }
+    }
+    _ui->labelLocalhost->setVisible(visible);
+}
+
+
 } // namespace OCC
diff --git a/src/gui/networksettings.h b/src/gui/networksettings.h
index 8d35b14dcb1..cc0d7a56233 100644
--- a/src/gui/networksettings.h
+++ b/src/gui/networksettings.h
@@ -44,6 +44,8 @@ private slots:
     /// Red marking of host field if empty and enabled
     void checkEmptyProxyHost();
 
+    void checkAccountLocalhost();
+
 protected:
     void showEvent(QShowEvent *event) override;
 
diff --git a/src/gui/networksettings.ui b/src/gui/networksettings.ui
index 60c5ae9c2d5..476079832a0 100644
--- a/src/gui/networksettings.ui
+++ b/src/gui/networksettings.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>542</width>
-    <height>396</height>
+    <width>623</width>
+    <height>581</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -23,6 +23,13 @@
       <string>Proxy Settings</string>
      </property>
      <layout class="QGridLayout" name="gridLayout">
+      <item row="2" column="1">
+       <widget class="QComboBox" name="typeComboBox">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
       <item row="0" column="0">
        <widget class="QRadioButton" name="noProxyRadioButton">
         <property name="text">
@@ -56,13 +63,6 @@
         </attribute>
        </widget>
       </item>
-      <item row="2" column="1">
-       <widget class="QComboBox" name="typeComboBox">
-        <property name="enabled">
-         <bool>false</bool>
-        </property>
-       </widget>
-      </item>
       <item row="3" column="0" colspan="2">
        <widget class="QWidget" name="manualSettings" native="true">
         <property name="enabled">
@@ -170,6 +170,13 @@
            </layout>
           </widget>
          </item>
+         <item>
+          <widget class="QLabel" name="labelLocalhost">
+           <property name="text">
+            <string>Note: proxy settings have no effects for accounts on localhost</string>
+           </property>
+          </widget>
+         </item>
         </layout>
        </widget>
       </item>