Wavlink frequently offers the latest firmware-updated versions for its devices that allow them to perform smoothly without any bugs. The same case is with your Wavlink ac600 setup, you can check for its firmware update on the web portal. So, access the web interface and choose the Administration option there and then Firmware Update. The portal will show you the latest version of your extender that you can download on your networked PC for further processing. Make sure to download the file which must not be corrupted and for your extender's exact model. Then, carry out the entire updating process by visiting the same portal again and using the screen directions to complete that. In the end, reboot the extender after saving the firmware update changes and reconnect your devices again. As a result, you will see a significant importance in your extender’s performance.