diff --git a/composer.json b/composer.json
index e278210..0879a2d 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
     "name": "dashboard/unifi",
     "description": "UniFi network management, WiFi stats, and captive portal authentication for the Dashboard platform",
-    "version": "1.11.0",
+    "version": "1.11.1",
     "type": "library",
     "license": "MIT",
     "autoload": {
diff --git a/src/Services/WebhookCheckService.php b/src/Services/WebhookCheckService.php
index ef23178..3198031 100644
--- a/src/Services/WebhookCheckService.php
+++ b/src/Services/WebhookCheckService.php
@@ -181,7 +181,11 @@ class WebhookCheckService
             $prev     = DeviceState::where('device_mac', $mac)->first();
             if (! $prev) continue;
 
-            // Skip planned reboots — these are intentional, not alerts
+            // Skip planned reboots — these are intentional, not alerts.
+            // Two layers: a global suppression window set by RebootAllAps
+            // (Setting, survives any cache driver), plus the per-MAC
+            // cache keys for finer granularity.
+            if ($this->inGlobalRebootSuppression()) continue;
             if (Cache::has('unifi:planned_reboot:' . strtolower($mac))) continue;
 
             if ($comingOnline) {
@@ -509,6 +513,8 @@ class WebhookCheckService
     private function checkReboot($aps, array $filter): array
     {
         $alerts = [];
+        if ($this->inGlobalRebootSuppression()) return $alerts;
+
         foreach ($aps as $ap) {
             if (! empty($filter) && ! in_array($ap['mac'], $filter)) continue;
             if (Cache::has('unifi:planned_reboot:' . strtolower($ap['mac']))) continue;
@@ -584,6 +590,24 @@ class WebhookCheckService
         return self::buildPlatformPayload($url, $message, $fullPayload);
     }
 
+    /**
+     * Is a fleet reboot in progress right now? RebootAllAps stamps a
+     * suppression-until timestamp as a Setting; while that timestamp
+     * is in the future, we skip all device-offline / device-online /
+     * unexpected-reboot alerts to avoid flooding webhooks during the
+     * known maintenance window.
+     */
+    private function inGlobalRebootSuppression(): bool
+    {
+        $until = \App\Models\Setting::get('unifi.reboot_suppression_until');
+        if (! $until) return false;
+        try {
+            return \Carbon\Carbon::parse($until)->isFuture();
+        } catch (\Throwable) {
+            return false;
+        }
+    }
+
     /**
      * Public/static helper so the test-webhook endpoint produces the
      * same per-platform payload shape that real events do.