TP-Link Archer C1200

I've been trying to block a security camera from accessing WAN but I've had no luck so far.

I see there is no setting for blocking ports on NAT forwarding so I tried blocking the camera via parental controls but no matter what I do I can't get it to do so.

- tried applying "Internet access time" to all hours

- tried applying "Internet access time" to no hours

- tried a whitelist with and without domains

- tried restarting the router after applying settings

- tried on iOS, Android, and Windows devices

- Tried using different browsers (no plugins and cleared all cached data)

- Tried using Tether app

- tried on 5 GHz, 2.4 GHz, and wired

I'm running out of options here! Should I factory reset the router? Should push a different firmware version to the router?
HELP!

Edit: I've updated firmware to 1.1.2 - issue remains 

I also just noticed my access to the router UI is the only thing being blocked