diff --git a/server/src/cronTasks.js b/server/src/cronTasks.js
index 043d16c..80826d0 100644
--- a/server/src/cronTasks.js
+++ b/server/src/cronTasks.js
@@ -9,11 +9,13 @@ cron.schedule(
   '*/5 * * * *',
   async () => {
     console.log(
-      '[cron exec] updateDBWithOnlineDevices started at ' + format(new Date())
+      '[cron exec] updateDBWithOnlineDevices started at ' +
+        format(new Date(), "d 'de' MMMM 'de' yyyy 'às' HH:MM")
     )
     await updateDBWithOnlineDevices()
     console.log(
-      '[cron exec] updateDBWithOnlineDevices finished at ' + format(new Date())
+      '[cron exec] updateDBWithOnlineDevices finished at ' +
+        format(new Date(), "d 'de' MMMM 'de' yyyy 'às' HH:MM")
     )
   },
   {}
diff --git a/server/src/utils/wifiUtils.js b/server/src/utils/wifiUtils.js
index d178a57..2049a95 100644
--- a/server/src/utils/wifiUtils.js
+++ b/server/src/utils/wifiUtils.js
@@ -47,7 +47,7 @@ const updateDBWithOnlineDevices = async () => {
   onlineDevices.forEach(async device => {
     const newDevice = {
       ...device,
-      user: device.user ? { connect: { sAMAccountName: device.user } } : null
+      user: device.user ? { connect: { sAMAccountName: device.user } } : undefined
     }
 
     try {