diff --git a/candy/net.go b/candy/net.go
index adb769f..91b7c3a 100644
--- a/candy/net.go
+++ b/candy/net.go
@@ -54,7 +54,7 @@ func flush() {
 		for _, ws := range n.ipWsMap {
 			if ws.dev.model.Online {
 				hasDeviceOnline = true
-				ws.dev.model.Save()
+				ws.dev.model.SaveRxTxOnline()
 			}
 		}
 		if hasDeviceOnline && !refreshedUsers.ContainsOne(n.model.UserID) {
diff --git a/candy/websocket.go b/candy/websocket.go
index 71abbaf..8f90841 100644
--- a/candy/websocket.go
+++ b/candy/websocket.go
@@ -82,7 +82,7 @@ func handleWebsocket(c *gin.Context) {
 
 	if ws.dev != nil && ws.dev.model.Online {
 		ws.dev.model.Online = false
-		ws.dev.model.Save()
+		ws.dev.model.SaveRxTxOnline()
 
 		net.ipWsMapMutex.Lock()
 		defer net.ipWsMapMutex.Unlock()
@@ -144,7 +144,7 @@ func (ws *candysocket) handlePingMessage(buffer string) error {
 	}
 
 	if ws.dev.model.Online {
-		ws.dev.model.Save()
+		ws.dev.model.SaveOsVersionHostname()
 	}
 
 	ws.writePong([]byte(buffer))
@@ -181,7 +181,7 @@ func (ws *candysocket) handleAuthMessage(buffer []byte) error {
 
 	if oldws, ok := ws.net.ipWsMap[message.IP]; ok {
 		oldws.dev.model.Online = false
-		oldws.dev.model.Save()
+		oldws.dev.model.SaveRxTxOnline()
 		oldws.writeCloseMessage("vmac conflict")
 		oldws.conn.Close()
 	}
diff --git a/model/device.go b/model/device.go
index 26f7d0b..9d428b5 100644
--- a/model/device.go
+++ b/model/device.go
@@ -39,6 +39,24 @@ func (d *Device) Save() {
 	}
 }
 
+func (d *Device) SaveRxTxOnline() {
+	db := storage.Get()
+	if d.ID == 0 {
+		db.Create(d)
+	} else {
+		db.Model(d).Select("rx", "tx", "online").Updates(d)
+	}
+}
+
+func (d *Device) SaveOsVersionHostname() {
+	db := storage.Get()
+	if d.ID == 0 {
+		db.Create(d)
+	} else {
+		db.Model(d).Select("os", "version", "hostname").Updates(d)
+	}
+}
+
 func (d *Device) Delete() {
 	db := storage.Get()
 	db.Delete(d)