@jvanheck If you haven't changed the Parental Control configuiration or upgraded the router FW in the last week then maybe you should look at the MAC addresses of devices in question - maybe they...

@klamath404 Same issue here. Turn FW auto-update off and stay on the v2.1.2 for now, while this has been resolved.

@Jager0314 Check this link.

@homeuser1988 For this IP address you should use a 32 bit mask - 255.255.255.255. Check your device user guide on how to configure IP filters - Chapter 4.4.2.

@Daniel090465 Check this thread describing similar symptoms and if your HW version is v1 then upgrade the device FW with the appropriate file attached. How to determine the HW version - look at the...

@SebasNL Any device that supports IGD (Internet Gateway Device) protocol can do that like Home Assistant already does - https://www.home-assistant.io/integrations/upnp/