I have just bought x20-4G to use as 4g backup in case of broadband failure. My concern is that in event of 4g backup there could be large amount of SIM data used if Netflix, gaming etc is being used at the time.

Is there anyway of selecting which devices can connect to 4g? I would want only mobiles and CCTV to remain connected on failover. No games consoles etc.

I have asked the question to tp link support and was told it is not possible but just wondering if anyone has any idea for a workaround.

Thanks