diff --git a/server/src/lib/wifiDevices.js b/server/src/lib/wifiDevices.js
index 8eb76f1..10e6a00 100644
--- a/server/src/lib/wifiDevices.js
+++ b/server/src/lib/wifiDevices.js
@@ -31,6 +31,40 @@ async function setAllDevicesAsOffline() {
   })
 }
 
+async function updateDB(onlineDevices) {
+  for (const device of onlineDevices) {
+    if (!device.user)
+      await prisma.$executeRaw(
+        'UPDATE "WifiDevice" SET "userId" = null WHERE mac = $1',
+        device.mac
+      )
+
+    const user = device.user
+      ? { connect: { sAMAccountName: device.user } }
+      : undefined
+
+    try {
+      await prisma.wifiDevice.upsert({
+        where: { mac: device.mac },
+        create: {
+          ...device,
+          hostname: device.hostname || device.mac,
+          firstSeen: device.firstSeen || new Date(),
+          user
+        },
+        update: {
+          ...device,
+          hostname: device.hostname || device.mac,
+          user
+        }
+      })
+    } catch (e) {
+      if (!['P2016'].includes(e.code))
+        console.log('[wifiDevice upsert error]', e)
+    }
+  }
+}
+
 async function updateDevicesInfo() {
   if (working) return -1 // Debounce updates
 
@@ -41,37 +75,7 @@ async function updateDevicesInfo() {
 
     await setAllDevicesAsOffline()
 
-    for (const device of onlineDevices) {
-      if (!device.user)
-        await prisma.$executeRaw(
-          'UPDATE "WifiDevice" SET "userId" = null WHERE mac = $1',
-          device.mac
-        )
-
-      const user = device.user
-        ? { connect: { sAMAccountName: device.user } }
-        : undefined
-
-      try {
-        await prisma.wifiDevice.upsert({
-          where: { mac: device.mac },
-          create: {
-            ...device,
-            hostname: device.hostname || device.mac,
-            firstSeen: device.firstSeen || new Date(),
-            user
-          },
-          update: {
-            ...device,
-            hostname: device.hostname || device.mac,
-            user
-          }
-        })
-      } catch (e) {
-        if (!['P2016'].includes(e.code))
-          console.log('[wifiDevice upsert error]', e)
-      }
-    }
+    await updateDB(onlineDevices)
 
     pubsub.publish(USER_PRESENCE_UPDATED, {
       userPresenceUpdated: onlineDevices.length