diff --git a/backend/app.js b/backend/app.js
index 95aeb65..037ba24 100644
--- a/backend/app.js
+++ b/backend/app.js
@@ -65,9 +65,9 @@ if (process.env.ZU_LAST_SEEN_FETCH !== "false") {
   cron.schedule(schedule, () => {
     console.debug("Running scheduled job");
     const networks = db.get("networks").value();
-    networks.forEach((network) => {
-      console.debug("Processing " + network.id);
-      pingAll(network);
+    networks.forEach(async (network) => {
+      console.debug("Processing network " + network.id);
+      await pingAll(network);
     });
   });
 }
diff --git a/backend/utils/ping.js b/backend/utils/ping.js
index 0f37589..218107f 100644
--- a/backend/utils/ping.js
+++ b/backend/utils/ping.js
@@ -1,22 +1,26 @@
+const _ = require("lodash");
+
 const api = require("./controller-api");
 const db = require("./db");
 
 async function pingAll(network) {
   await Promise.all(
     network.members.map(async (member) => {
-      console.debug("Processing " + member.id);
+      console.debug("Processing member " + member.id);
       api
         .get("peer/" + member.id)
-        .then(async function () {
-          // write lastOneline field in db
-          db.get("networks")
-            .filter({ id: network.id })
-            .map("members")
-            .first()
-            .filter({ id: member.id })
-            .first()
-            .set("lastOnline", new Date().getTime())
-            .write();
+        .then(function (controllerResp) {
+          if (!_.isEmpty(controllerResp.data)) {
+            // write lastOnline field in db
+            db.get("networks")
+              .filter({ id: network.id })
+              .map("members")
+              .first()
+              .filter({ id: member.id })
+              .first()
+              .set("lastOnline", new Date().getTime())
+              .write();
+          }
         })
         .catch(function (err) {
           console.debug("Couldn't fetch", member.id);