@Bozwing Have you ever tried to change the wireless settings of the main router to give it a shot? including wireless channel and channel width.

@newbuilder It is goodl to know that.

@Richywd What about now? Try to change another web browser or device to update the firmware. If it is still the same, please show us a screenshot of the firmware upgrading page where you get stuck.

@Gaaaz You can try to install the beta firmware updated on my original post.

@Ibrahima Thanks, noted that. There is a plan to add this feature in the future, while the ETA is still uncertain.

@daftpunk Like I said, if it still does not work, you can hard reset the router and relog in. And please ensure that you have obtained valid IP address from the main router.