diff --git a/front/server.form.php b/front/server.form.php
index ef97b14..b8cade9 100644
--- a/front/server.form.php
+++ b/front/server.form.php
@@ -3,7 +3,6 @@
 use GlpiPlugin\Urbackup\Profile;
 use GlpiPlugin\Urbackup\Server;
 use GlpiPlugin\Urbackup\ServerAsset;
-use Html;
 
 if (!defined('GLPI_ROOT')) {
     define('GLPI_ROOT', dirname(__DIR__, 4));
@@ -52,26 +51,54 @@ Html::header(
     'GlpiPlugin\Urbackup\Server'
 );
 
-$server->showForm($ID);
-
-if ($ID > 0 && $server->getFromDB($ID)) {
-    echo '<div class="card mt-4">';
-    echo '<div class="card-header">';
-    echo '<h5 class="mb-0">' . htmlspecialchars(__('Linked clients', 'urbackup')) . '</h5>';
-    echo '</div>';
-    echo '<div class="card-body">';
-    Server::showLinkedClientsTab($server);
-    echo '</div>';
-    echo '</div>';
-    
-    echo '<div class="card mt-4">';
-    echo '<div class="card-header">';
-    echo '<h5 class="mb-0">' . htmlspecialchars(__('Unlinked clients', 'urbackup')) . '</h5>';
-    echo '</div>';
-    echo '<div class="card-body">';
-    Server::showUnlinkedClientsTab($server);
-    echo '</div>';
-    echo '</div>';
+if ($ID > 0) {
+    $server->getFromDB($ID);
+    ?>
+    <div class="row">
+        <div class="col-2">
+            <ul class="nav nav-pills flex-column">
+                <li class="nav-item">
+                    <a class="nav-link active" data-bs-toggle="tab" href="#tab-server">
+                        <?php echo htmlspecialchars(__('Server')); ?>
+                    </a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" data-bs-toggle="tab" href="#tab-linked">
+                        <?php echo htmlspecialchars(__('Linked clients', 'urbackup')); ?>
+                    </a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" data-bs-toggle="tab" href="#tab-unlinked">
+                        <?php echo htmlspecialchars(__('Unlinked clients', 'urbackup')); ?>
+                    </a>
+                </li>
+                <li class="nav-item">
+                    <a class="nav-link" data-bs-toggle="tab" href="#tab-missing">
+                        <?php echo htmlspecialchars(__('Missing clients', 'urbackup')); ?>
+                    </a>
+                </li>
+            </ul>
+        </div>
+        <div class="col-10">
+            <div class="tab-content">
+                <div class="tab-pane active" id="tab-server">
+                    <?php $server->showForm($ID); ?>
+                </div>
+                <div class="tab-pane" id="tab-linked">
+                    <?php Server::showLinkedClientsTab($server); ?>
+                </div>
+                <div class="tab-pane" id="tab-unlinked">
+                    <?php Server::showUnlinkedClientsTab($server); ?>
+                </div>
+                <div class="tab-pane" id="tab-missing">
+                    <?php Server::showMissingClientsTab($server); ?>
+                </div>
+            </div>
+        </div>
+    </div>
+    <?php
+} else {
+    $server->showForm($ID);
 }
 
-Html::footer();
\ No newline at end of file
+Html::footer();
diff --git a/src/Server.php b/src/Server.php
index bf18816..c38392e 100644
--- a/src/Server.php
+++ b/src/Server.php
@@ -324,7 +324,14 @@ class Server extends CommonDBTM
 
         $this->initForm($ID, $options);
         $this->showFormHeader($options);
+        $this->showFormFields($ID);
+        $this->showFormButtons($options);
 
+        return true;
+    }
+
+    public function showFormFields(int $ID): void
+    {
         echo "<tr class='tab_bg_1'>";
         echo "<td>" . htmlspecialchars(__('Name')) . "</td>";
         echo "<td>";
@@ -464,7 +471,7 @@ class Server extends CommonDBTM
             echo "</td>";
             echo "</tr>";
 
-$apiStatus = (int) ($this->fields['last_api_status'] ?? 0);
+            $apiStatus = (int) ($this->fields['last_api_status'] ?? 0);
             echo "<tr class='tab_bg_1'>";
             echo "<td>" . htmlspecialchars(__('API connection status', 'urbackup')) . "<br><small class='text-muted'>" . htmlspecialchars(__('Click Save to test connection', 'urbackup')) . "</small></td>";
             echo "<td colspan='3'>";
@@ -479,10 +486,6 @@ $apiStatus = (int) ($this->fields['last_api_status'] ?? 0);
             echo "</td>";
             echo "</tr>";
         }
-
-        $this->showFormButtons($options);
-
-        return true;
     }
 
     /**
@@ -789,7 +792,6 @@ $apiStatus = (int) ($this->fields['last_api_status'] ?? 0);
         echo '<thead>';
         echo '<tr>';
         echo '<th>' . htmlspecialchars(__('Asset', 'urbackup')) . '</th>';
-        echo '<th>' . htmlspecialchars(__('Name', 'urbackup')) . '</th>';
         echo '<th>' . htmlspecialchars(__('Client name', 'urbackup')) . '</th>';
         echo '<th>' . htmlspecialchars(__('Version', 'urbackup')) . '</th>';
         echo '<th>' . htmlspecialchars(__('Status', 'urbackup')) . '</th>';
@@ -840,8 +842,14 @@ $apiStatus = (int) ($this->fields['last_api_status'] ?? 0);
             $itemUrl = $glpiItem ? $glpiItem->getLinkURL() : '';
 
             echo '<tr>';
-            echo '<td>' . htmlspecialchars($itemTypeLabel . ' #' . $link['items_id']) . '</td>';
-            echo '<td>' . ($itemUrl ? '<a href="' . htmlspecialchars($itemUrl) . '">' . htmlspecialchars($clientName) . '</a>' : htmlspecialchars($clientName)) . '</td>';
+            echo '<td>';
+            if ($itemUrl) {
+                echo '<a href="' . htmlspecialchars($itemUrl) . '">' . htmlspecialchars($clientName) . '</a>';
+            } else {
+                echo htmlspecialchars($clientName);
+            }
+            echo ' <small class="text-muted">(' . htmlspecialchars($itemTypeLabel) . ')</small>';
+            echo '</td>';
             echo '<td>' . htmlspecialchars($urbackupClientName) . '</td>';
             echo '<td>' . htmlspecialchars($clientVersion) . '</td>';
             echo '<td>' . $statusHtml . '</td>';
@@ -1005,4 +1013,145 @@ $apiStatus = (int) ($this->fields['last_api_status'] ?? 0);
         echo '</tbody>';
         echo '</table>';
     }
+
+    public static function showMissingClientsTab(Server $server): void
+    {
+        global $DB;
+
+        $apiStatus = (int) ($server->fields['last_api_status'] ?? 0);
+        if ($apiStatus !== 1) {
+            echo '<div class="alert alert-warning">';
+            echo htmlspecialchars(__('API connection not working. Save server to test connection.', 'urbackup'));
+            echo '</div>';
+            return;
+        }
+
+        $serverLocationId = (int) ($server->fields['locations_id'] ?? 0);
+        if ($serverLocationId <= 0) {
+            echo '<div class="alert alert-info">';
+            echo htmlspecialchars(__('No location configured for this server.', 'urbackup'));
+            echo '</div>';
+            return;
+        }
+
+        $rootLocationId = LocationHelper::getRootLocationId($serverLocationId);
+
+        $linkedIterator = $DB->request([
+            'FROM' => ServerAsset::getTable(),
+        ]);
+        $linkedAssetKeys = [];
+        foreach ($linkedIterator as $row) {
+            $linkedAssetKeys[$row['itemtype'] . ':' . $row['items_id']] = true;
+        }
+
+        try {
+            $client = new UrbackupApiClient($server);
+            $urbackupClients = $client->getStatus();
+        } catch (\Throwable $e) {
+            echo '<div class="alert alert-danger">';
+            echo htmlspecialchars($e->getMessage());
+            echo '</div>';
+            return;
+        }
+
+        $urbackupClientNames = [];
+        foreach ($urbackupClients as $uc) {
+            $name = strtolower((string) ($uc['name'] ?? $uc['clientname'] ?? $uc['hostname'] ?? ''));
+            if ($name !== '') {
+                $urbackupClientNames[$name] = true;
+            }
+        }
+
+        $itemtypes = Config::getEnabledItemtypes();
+        $missingAssets = [];
+
+        foreach ($itemtypes as $itemtype) {
+            if (!class_exists($itemtype)) {
+                continue;
+            }
+            $assetItem = new $itemtype();
+            if (!$assetItem instanceof CommonDBTM) {
+                continue;
+            }
+            $table = $assetItem->getTable();
+            if (!$DB->tableExists($table)) {
+                continue;
+            }
+
+            $iterator = $DB->request([
+                'FROM'  => $table,
+                'WHERE' => [
+                    'is_deleted' => 0,
+                ],
+            ]);
+
+            foreach ($iterator as $assetRow) {
+                $name = (string) ($assetRow['name'] ?? '');
+                if ($name === '') {
+                    continue;
+                }
+                $nameLower = strtolower($name);
+
+                $assetLocationId = (int) ($assetRow['locations_id'] ?? 0);
+                $assetRootLocationId = LocationHelper::getRootLocationId($assetLocationId);
+
+                if ($assetRootLocationId !== $rootLocationId) {
+                    continue;
+                }
+
+                $key = $itemtype . ':' . $assetRow['id'];
+                if (isset($linkedAssetKeys[$key])) {
+                    continue;
+                }
+                if (isset($urbackupClientNames[$nameLower])) {
+                    continue;
+                }
+
+                $missingAssets[] = [
+                    'itemtype' => $itemtype,
+                    'items_id' => (int) $assetRow['id'],
+                    'name'     => $name,
+                ];
+            }
+        }
+
+        if (count($missingAssets) === 0) {
+            echo '<div class="alert alert-success">';
+            echo htmlspecialchars(__('All assets in this location are linked or already on the UrBackup server.', 'urbackup'));
+            echo '</div>';
+            return;
+        }
+
+        $formAction = PLUGIN_URBACKUP_WEB_DIR . '/front/server.form.php';
+
+        echo '<table class="table table-striped table-hover">';
+        echo '<thead><tr>';
+        echo '<th>' . htmlspecialchars(__('Asset type')) . '</th>';
+        echo '<th>' . htmlspecialchars(__('Name')) . '</th>';
+        echo '<th>' . htmlspecialchars(__('Actions', 'urbackup')) . '</th>';
+        echo '</tr></thead>';
+        echo '<tbody>';
+
+        foreach ($missingAssets as $asset) {
+            $itemtypeLabel = class_exists($asset['itemtype']) ? $asset['itemtype']::getTypeName(1) : $asset['itemtype'];
+            echo '<tr>';
+            echo '<td>' . htmlspecialchars($itemtypeLabel) . '</td>';
+            echo '<td>' . htmlspecialchars($asset['name']) . '</td>';
+            echo '<td>';
+            echo '<form method="post" action="' . htmlspecialchars($formAction) . '" class="d-inline">';
+            echo Html::hidden('_glpi_csrf_token', ['value' => Session::getNewCSRFToken()]);
+            echo Html::hidden('itemtype', ['value' => $asset['itemtype']]);
+            echo Html::hidden('items_id', ['value' => $asset['items_id']]);
+            echo Html::hidden('id', ['value' => (int) $server->fields['id']]);
+            echo '<button type="submit" name="link_asset" value="1" class="btn btn-primary btn-sm">';
+            echo htmlspecialchars(__('Connect'));
+            echo '</button>';
+            Html::closeForm();
+            echo '</td>';
+            echo '</tr>';
+        }
+
+        echo '</tbody>';
+        echo '</table>';
+    }
 }
\ No newline at end of file