diff --git a/lib/services/livesync/playground/devices/preview-devices-service.ts b/lib/services/livesync/playground/devices/preview-devices-service.ts
index 6be8c2627b..66f674572e 100644
--- a/lib/services/livesync/playground/devices/preview-devices-service.ts
+++ b/lib/services/livesync/playground/devices/preview-devices-service.ts
@@ -48,6 +48,7 @@ export class PreviewDevicesService extends EventEmitter implements IPreviewDevic
 	private raiseDeviceFound(device: Device) {
 		if (this.deviceLostTimers[device.id]) {
 			clearTimeout(this.deviceLostTimers[device.id]);
+			this.deviceLostTimers[device.id] = null;
 		}
 
 		this.emit(DeviceDiscoveryEventNames.DEVICE_FOUND, device);