diff --git a/server.ts b/server.ts
index a3b2338..1b1254e 100644
--- a/server.ts
+++ b/server.ts
@@ -760,22 +760,24 @@ async function startServer() {
         continue;
       }
       try {
+        // Request explicit columns so CheckMK includes monitoring state in the response.
+        const colParam = encodeURIComponent(JSON.stringify(['name', 'state', 'has_been_checked']));
         const hostRes = await fetch(
-          `${CHECKMK_API_URL}/objects/host/${encodeURIComponent(cmkHost)}`,
+          `${CHECKMK_API_URL}/objects/host/${encodeURIComponent(cmkHost)}?columns=${colParam}`,
           { headers }
         );
         if (!hostRes.ok) throw new Error(checkmkHttpHint(hostRes.status));
         const hostData = await hostRes.json();
 
-        // Log raw extensions once so the state field path can be verified.
+        // Log full raw response once so we can see all available fields and paths.
         if (!loggedFirstExtensions) {
           loggedFirstExtensions = true;
           db.prepare('INSERT INTO logs (id, timestamp, type, message) VALUES (?, ?, ?, ?)')
             .run(uid('log'), now, 'system',
-              `CheckMK per-host raw extensions for "${cmkHost}": ${JSON.stringify(hostData?.extensions ?? hostData).substring(0, 400)}`);
+              `CheckMK per-host full response for "${cmkHost}": ${JSON.stringify(hostData).substring(0, 600)}`);
         }
 
-        const state: number = hostData?.extensions?.state ?? -1;
+        const state: number = hostData?.extensions?.state ?? hostData?.state ?? -1;
         const newStatus = state === 0 ? 'online' : state === 1 || state === 2 ? 'offline' : 'unknown';
         db.prepare('UPDATE devices SET status = ?, lastCheckedAt = ? WHERE id = ?').run(newStatus, now, dev.id);
         if (dev.status !== newStatus) {