SmartRG 516AC URL Filter / Parental Controls

Hello,

I see there have been some posts before regarding the URL filtering on the SmartRG 516AC gateway not working.

I've tried entering URLs which I would like blocked in the gateway (Excluded URLS) - Although the gateway lets me save the various URLs to be excluded, it doesn't actually block any URLs.

Seems to be possibly a firmware issue with the SmartRG 516AC?

Is there any way to get this feature working? Thanks in advance.